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Finding the Fourth Proportional to 42,664,616.55, 63,996,924.83 and 42,664,616.55

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Solution

The fourth proportional to 42,664,616.55, 63,996,924.83 and 42,664,616.55 is: 63,996,924.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,664,616.55 : 63,996,924.83 = 42,664,616.55 : x
  2. Step 2: Convert to fraction form
    42,664,616.55/63,996,924.83 = 42,664,616.55/x
  3. Step 3: Cross multiply
    42,664,616.55x = 63,996,924.83 × 42,664,616.55
  4. Step 4: Simplify right side
    42,664,616.55x = 2,730,404,258,037,801
  5. Step 5: Solve for x
    x = 2,730,404,258,037,801/42,664,616.55
  6. Step 6: Final answer
    x = 63,996,924.83

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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.