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Finding the Fourth Proportional to 165,279.92, 247,951.80 and 70,508.48

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Solution

The fourth proportional to 165,279.92, 247,951.80 and 70,508.48 is: 105,776.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,279.92 : 247,951.80 = 70,508.48 : x
  2. Step 2: Convert to fraction form
    165,279.92/247,951.80 = 70,508.48/x
  3. Step 3: Cross multiply
    165,279.92x = 247,951.80 × 70,508.48
  4. Step 4: Simplify right side
    165,279.92x = 17,482,704,531.26
  5. Step 5: Solve for x
    x = 17,482,704,531.26/165,279.92
  6. Step 6: Final answer
    x = 105,776.34

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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.