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Finding the Fourth Proportional to 157,957.80, 236,901.72 and 45,613.56

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Solution

The fourth proportional to 157,957.80, 236,901.72 and 45,613.56 is: 68,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,957.80 : 236,901.72 = 45,613.56 : x
  2. Step 2: Convert to fraction form
    157,957.80/236,901.72 = 45,613.56/x
  3. Step 3: Cross multiply
    157,957.80x = 236,901.72 × 45,613.56
  4. Step 4: Simplify right side
    157,957.80x = 10,805,930,819.32
  5. Step 5: Solve for x
    x = 10,805,930,819.32/157,957.80
  6. Step 6: Final answer
    x = 68,410.24

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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.