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Finding the Fourth Proportional to 73,915,498.80, 110,873,248.20 and 20,062,810.80

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Solution

The fourth proportional to 73,915,498.80, 110,873,248.20 and 20,062,810.80 is: 30,094,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,915,498.80 : 110,873,248.20 = 20,062,810.80 : x
  2. Step 2: Convert to fraction form
    73,915,498.80/110,873,248.20 = 20,062,810.80/x
  3. Step 3: Cross multiply
    73,915,498.80x = 110,873,248.20 × 20,062,810.80
  4. Step 4: Simplify right side
    73,915,498.80x = 2,224,429,001,418,040.75
  5. Step 5: Solve for x
    x = 2,224,429,001,418,040.75/73,915,498.80
  6. Step 6: Final answer
    x = 30,094,216.20

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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.