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Finding the Fourth Proportional to 110,672.80, 152,713.06 and 62,920.87

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Solution

The fourth proportional to 110,672.80, 152,713.06 and 62,920.87 is: 86,822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,672.80 : 152,713.06 = 62,920.87 : x
  2. Step 2: Convert to fraction form
    110,672.80/152,713.06 = 62,920.87/x
  3. Step 3: Cross multiply
    110,672.80x = 152,713.06 × 62,920.87
  4. Step 4: Simplify right side
    110,672.80x = 9,608,838,595.56
  5. Step 5: Solve for x
    x = 9,608,838,595.56/110,672.80
  6. Step 6: Final answer
    x = 86,822.04

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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.