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Finding the Fourth Proportional to 66,418,825,501.20, 99,628,238,251.80 and 66,418,825,501.20

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Solution

The fourth proportional to 66,418,825,501.20, 99,628,238,251.80 and 66,418,825,501.20 is: 99,628,238,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,418,825,501.20 : 99,628,238,251.80 = 66,418,825,501.20 : x
  2. Step 2: Convert to fraction form
    66,418,825,501.20/99,628,238,251.80 = 66,418,825,501.20/x
  3. Step 3: Cross multiply
    66,418,825,501.20x = 99,628,238,251.80 × 66,418,825,501.20
  4. Step 4: Simplify right side
    66,418,825,501.20x = 6,617,190,571,438,282,637,312
  5. Step 5: Solve for x
    x = 6,617,190,571,438,282,637,312/66,418,825,501.20
  6. Step 6: Final answer
    x = 99,628,238,251.80

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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.