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Finding the Fourth Proportional to 73,673,918.79, 110,280,978.05 and 54,265,060.31

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Solution

The fourth proportional to 73,673,918.79, 110,280,978.05 and 54,265,060.31 is: 81,228,255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,673,918.79 : 110,280,978.05 = 54,265,060.31 : x
  2. Step 2: Convert to fraction form
    73,673,918.79/110,280,978.05 = 54,265,060.31/x
  3. Step 3: Cross multiply
    73,673,918.79x = 110,280,978.05 × 54,265,060.31
  4. Step 4: Simplify right side
    73,673,918.79x = 5,984,403,924,392,810
  5. Step 5: Solve for x
    x = 5,984,403,924,392,810/73,673,918.79
  6. Step 6: Final answer
    x = 81,228,255.85

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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.