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Finding the Fourth Proportional to 80,695.80, 121,043.70 and 62,033.40

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Solution

The fourth proportional to 80,695.80, 121,043.70 and 62,033.40 is: 93,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,695.80 : 121,043.70 = 62,033.40 : x
  2. Step 2: Convert to fraction form
    80,695.80/121,043.70 = 62,033.40/x
  3. Step 3: Cross multiply
    80,695.80x = 121,043.70 × 62,033.40
  4. Step 4: Simplify right side
    80,695.80x = 7,508,752,259.58
  5. Step 5: Solve for x
    x = 7,508,752,259.58/80,695.80
  6. Step 6: Final answer
    x = 93,050.10

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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.