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Finding the Fourth Proportional to 153,279.30, 229,926.15 and 48,101.70

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Solution

The fourth proportional to 153,279.30, 229,926.15 and 48,101.70 is: 72,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,279.30 : 229,926.15 = 48,101.70 : x
  2. Step 2: Convert to fraction form
    153,279.30/229,926.15 = 48,101.70/x
  3. Step 3: Cross multiply
    153,279.30x = 229,926.15 × 48,101.70
  4. Step 4: Simplify right side
    153,279.30x = 11,059,838,689.46
  5. Step 5: Solve for x
    x = 11,059,838,689.46/153,279.30
  6. Step 6: Final answer
    x = 72,154.81

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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.