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Finding the Fourth Proportional to 378,248.40, 567,167.80 and 156,654.80

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Solution

The fourth proportional to 378,248.40, 567,167.80 and 156,654.80 is: 234,897.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,248.40 : 567,167.80 = 156,654.80 : x
  2. Step 2: Convert to fraction form
    378,248.40/567,167.80 = 156,654.80/x
  3. Step 3: Cross multiply
    378,248.40x = 567,167.80 × 156,654.80
  4. Step 4: Simplify right side
    378,248.40x = 88,849,558,275.44
  5. Step 5: Solve for x
    x = 88,849,558,275.44/378,248.40
  6. Step 6: Final answer
    x = 234,897.38

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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.