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Finding the Fourth Proportional to 90,825,846.53, 136,238,769.80 and 90,825,846.53

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Solution

The fourth proportional to 90,825,846.53, 136,238,769.80 and 90,825,846.53 is: 136,238,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825,846.53 : 136,238,769.80 = 90,825,846.53 : x
  2. Step 2: Convert to fraction form
    90,825,846.53/136,238,769.80 = 90,825,846.53/x
  3. Step 3: Cross multiply
    90,825,846.53x = 136,238,769.80 × 90,825,846.53
  4. Step 4: Simplify right side
    90,825,846.53x = 12,374,001,596,155,476
  5. Step 5: Solve for x
    x = 12,374,001,596,155,476/90,825,846.53
  6. Step 6: Final answer
    x = 136,238,769.80

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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.