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Finding the Fourth Proportional to 538,632.60, 807,700.49 and 159,417.73

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Solution

The fourth proportional to 538,632.60, 807,700.49 and 159,417.73 is: 239,053.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,632.60 : 807,700.49 = 159,417.73 : x
  2. Step 2: Convert to fraction form
    538,632.60/807,700.49 = 159,417.73/x
  3. Step 3: Cross multiply
    538,632.60x = 807,700.49 × 159,417.73
  4. Step 4: Simplify right side
    538,632.60x = 128,761,778,635.69
  5. Step 5: Solve for x
    x = 128,761,778,635.69/538,632.60
  6. Step 6: Final answer
    x = 239,053.08

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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.