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Finding the Fourth Proportional to 123,781.04, 170,818.04 and 67,192.48

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Solution

The fourth proportional to 123,781.04, 170,818.04 and 67,192.48 is: 92,725.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781.04 : 170,818.04 = 67,192.48 : x
  2. Step 2: Convert to fraction form
    123,781.04/170,818.04 = 67,192.48/x
  3. Step 3: Cross multiply
    123,781.04x = 170,818.04 × 67,192.48
  4. Step 4: Simplify right side
    123,781.04x = 11,477,687,736.34
  5. Step 5: Solve for x
    x = 11,477,687,736.34/123,781.04
  6. Step 6: Final answer
    x = 92,725.73

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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.