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Finding the Fourth Proportional to 123,248.59, 170,079.15 and 69,532.90

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Solution

The fourth proportional to 123,248.59, 170,079.15 and 69,532.90 is: 95,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,248.59 : 170,079.15 = 69,532.90 : x
  2. Step 2: Convert to fraction form
    123,248.59/170,079.15 = 69,532.90/x
  3. Step 3: Cross multiply
    123,248.59x = 170,079.15 × 69,532.90
  4. Step 4: Simplify right side
    123,248.59x = 11,826,096,529.04
  5. Step 5: Solve for x
    x = 11,826,096,529.04/123,248.59
  6. Step 6: Final answer
    x = 95,953.20

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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.