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Finding the Fourth Proportional to 136,291.52, 204,363.12 and 47,521.28

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Solution

The fourth proportional to 136,291.52, 204,363.12 and 47,521.28 is: 71,256.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,291.52 : 204,363.12 = 47,521.28 : x
  2. Step 2: Convert to fraction form
    136,291.52/204,363.12 = 47,521.28/x
  3. Step 3: Cross multiply
    136,291.52x = 204,363.12 × 47,521.28
  4. Step 4: Simplify right side
    136,291.52x = 9,711,597,047.19
  5. Step 5: Solve for x
    x = 9,711,597,047.19/136,291.52
  6. Step 6: Final answer
    x = 71,256.06

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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.