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Finding the Fourth Proportional to 63,872,129.79, 95,752,928.12 and 54,219,805.29

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Solution

The fourth proportional to 63,872,129.79, 95,752,928.12 and 54,219,805.29 is: 81,282,793.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,872,129.79 : 95,752,928.12 = 54,219,805.29 : x
  2. Step 2: Convert to fraction form
    63,872,129.79/95,752,928.12 = 54,219,805.29/x
  3. Step 3: Cross multiply
    63,872,129.79x = 95,752,928.12 × 54,219,805.29
  4. Step 4: Simplify right side
    63,872,129.79x = 5,191,705,118,342,666
  5. Step 5: Solve for x
    x = 5,191,705,118,342,666/63,872,129.79
  6. Step 6: Final answer
    x = 81,282,793.22

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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.