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Finding the Fourth Proportional to 64,652,274.70, 96,978,412.05 and 40,418,565.10

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Solution

The fourth proportional to 64,652,274.70, 96,978,412.05 and 40,418,565.10 is: 60,627,847.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,652,274.70 : 96,978,412.05 = 40,418,565.10 : x
  2. Step 2: Convert to fraction form
    64,652,274.70/96,978,412.05 = 40,418,565.10/x
  3. Step 3: Cross multiply
    64,652,274.70x = 96,978,412.05 × 40,418,565.10
  4. Step 4: Simplify right side
    64,652,274.70x = 3,919,728,260,737,549.50
  5. Step 5: Solve for x
    x = 3,919,728,260,737,549.50/64,652,274.70
  6. Step 6: Final answer
    x = 60,627,847.65

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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.