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Finding the Fourth Proportional to 123,686.61, 170,687.16 and 67,097.97

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Solution

The fourth proportional to 123,686.61, 170,687.16 and 67,097.97 is: 92,595.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,686.61 : 170,687.16 = 67,097.97 : x
  2. Step 2: Convert to fraction form
    123,686.61/170,687.16 = 67,097.97/x
  3. Step 3: Cross multiply
    123,686.61x = 170,687.16 × 67,097.97
  4. Step 4: Simplify right side
    123,686.61x = 11,452,761,941.07
  5. Step 5: Solve for x
    x = 11,452,761,941.07/123,686.61
  6. Step 6: Final answer
    x = 92,595.00

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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.