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Finding the Fourth Proportional to 538,632.35, 807,700.12 and 159,417.48

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Solution

The fourth proportional to 538,632.35, 807,700.12 and 159,417.48 is: 239,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,632.35 : 807,700.12 = 159,417.48 : x
  2. Step 2: Convert to fraction form
    538,632.35/807,700.12 = 159,417.48/x
  3. Step 3: Cross multiply
    538,632.35x = 807,700.12 × 159,417.48
  4. Step 4: Simplify right side
    538,632.35x = 128,761,516,929.01
  5. Step 5: Solve for x
    x = 128,761,516,929.01/538,632.35
  6. Step 6: Final answer
    x = 239,052.70

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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.