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Finding the Fourth Proportional to 123,259.52, 170,098.18 and 69,555.92

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Solution

The fourth proportional to 123,259.52, 170,098.18 and 69,555.92 is: 95,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,259.52 : 170,098.18 = 69,555.92 : x
  2. Step 2: Convert to fraction form
    123,259.52/170,098.18 = 69,555.92/x
  3. Step 3: Cross multiply
    123,259.52x = 170,098.18 × 69,555.92
  4. Step 4: Simplify right side
    123,259.52x = 11,831,334,375.84
  5. Step 5: Solve for x
    x = 11,831,334,375.84/123,259.52
  6. Step 6: Final answer
    x = 95,987.18

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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.