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Finding the Fourth Proportional to 110,672.62, 152,712.80 and 62,920.68

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Solution

The fourth proportional to 110,672.62, 152,712.80 and 62,920.68 is: 86,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,672.62 : 152,712.80 = 62,920.68 : x
  2. Step 2: Convert to fraction form
    110,672.62/152,712.80 = 62,920.68/x
  3. Step 3: Cross multiply
    110,672.62x = 152,712.80 × 62,920.68
  4. Step 4: Simplify right side
    110,672.62x = 9,608,793,220.70
  5. Step 5: Solve for x
    x = 9,608,793,220.70/110,672.62
  6. Step 6: Final answer
    x = 86,821.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.