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Finding the Fourth Proportional to 123,246.74, 170,079.98 and 69,531.78

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Solution

The fourth proportional to 123,246.74, 170,079.98 and 69,531.78 is: 95,953.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,246.74 : 170,079.98 = 69,531.78 : x
  2. Step 2: Convert to fraction form
    123,246.74/170,079.98 = 69,531.78/x
  3. Step 3: Cross multiply
    123,246.74x = 170,079.98 × 69,531.78
  4. Step 4: Simplify right side
    123,246.74x = 11,825,963,751.76
  5. Step 5: Solve for x
    x = 11,825,963,751.76/123,246.74
  6. Step 6: Final answer
    x = 95,953.56

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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.