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Finding the Fourth Proportional to 86,669,424,007.80, 130,004,136,011.70 and 86,669,424,007.80

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Solution

The fourth proportional to 86,669,424,007.80, 130,004,136,011.70 and 86,669,424,007.80 is: 130,004,136,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,669,424,007.80 : 130,004,136,011.70 = 86,669,424,007.80 : x
  2. Step 2: Convert to fraction form
    86,669,424,007.80/130,004,136,011.70 = 86,669,424,007.80/x
  3. Step 3: Cross multiply
    86,669,424,007.80x = 130,004,136,011.70 × 86,669,424,007.80
  4. Step 4: Simplify right side
    86,669,424,007.80x = 11,267,383,586,765,729,169,408
  5. Step 5: Solve for x
    x = 11,267,383,586,765,729,169,408/86,669,424,007.80
  6. Step 6: Final answer
    x = 130,004,136,011.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.