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Finding the Fourth Proportional to 502,960.20, 754,367.40 and 147,937.20

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Solution

The fourth proportional to 502,960.20, 754,367.40 and 147,937.20 is: 221,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,960.20 : 754,367.40 = 147,937.20 : x
  2. Step 2: Convert to fraction form
    502,960.20/754,367.40 = 147,937.20/x
  3. Step 3: Cross multiply
    502,960.20x = 754,367.40 × 147,937.20
  4. Step 4: Simplify right side
    502,960.20x = 111,599,000,927.28
  5. Step 5: Solve for x
    x = 111,599,000,927.28/502,960.20
  6. Step 6: Final answer
    x = 221,884.36

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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.