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Finding the Fourth Proportional to 356,665.28, 535,068.05 and 132,027.71

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Solution

The fourth proportional to 356,665.28, 535,068.05 and 132,027.71 is: 198,067.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,665.28 : 535,068.05 = 132,027.71 : x
  2. Step 2: Convert to fraction form
    356,665.28/535,068.05 = 132,027.71/x
  3. Step 3: Cross multiply
    356,665.28x = 535,068.05 × 132,027.71
  4. Step 4: Simplify right side
    356,665.28x = 70,643,806,000.19
  5. Step 5: Solve for x
    x = 70,643,806,000.19/356,665.28
  6. Step 6: Final answer
    x = 198,067.52

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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.