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Finding the Fourth Proportional to 159,662,404.80, 239,423,623.20 and 73,372,132.80

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Solution

The fourth proportional to 159,662,404.80, 239,423,623.20 and 73,372,132.80 is: 110,026,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,662,404.80 : 239,423,623.20 = 73,372,132.80 : x
  2. Step 2: Convert to fraction form
    159,662,404.80/239,423,623.20 = 73,372,132.80/x
  3. Step 3: Cross multiply
    159,662,404.80x = 239,423,623.20 × 73,372,132.80
  4. Step 4: Simplify right side
    159,662,404.80x = 17,567,021,876,887,560
  5. Step 5: Solve for x
    x = 17,567,021,876,887,560/159,662,404.80
  6. Step 6: Final answer
    x = 110,026,038.37

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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.