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Finding the Fourth Proportional to 502,671.76, 754,113.28 and 147,655.92

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Solution

The fourth proportional to 502,671.76, 754,113.28 and 147,655.92 is: 221,514.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,671.76 : 754,113.28 = 147,655.92 : x
  2. Step 2: Convert to fraction form
    502,671.76/754,113.28 = 147,655.92/x
  3. Step 3: Cross multiply
    502,671.76x = 754,113.28 × 147,655.92
  4. Step 4: Simplify right side
    502,671.76x = 111,349,290,142.62
  5. Step 5: Solve for x
    x = 111,349,290,142.62/502,671.76
  6. Step 6: Final answer
    x = 221,514.91

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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.