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Finding the Fourth Proportional to 79,712,552.80, 119,493,596.40 and 43,267,218.40

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Solution

The fourth proportional to 79,712,552.80, 119,493,596.40 and 43,267,218.40 is: 64,859,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712,552.80 : 119,493,596.40 = 43,267,218.40 : x
  2. Step 2: Convert to fraction form
    79,712,552.80/119,493,596.40 = 43,267,218.40/x
  3. Step 3: Cross multiply
    79,712,552.80x = 119,493,596.40 × 43,267,218.40
  4. Step 4: Simplify right side
    79,712,552.80x = 5,170,155,532,840,254
  5. Step 5: Solve for x
    x = 5,170,155,532,840,254/79,712,552.80
  6. Step 6: Final answer
    x = 64,859,991.95

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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.