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Finding the Fourth Proportional to 123,092.13, 169,867.26 and 66,503.55

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Solution

The fourth proportional to 123,092.13, 169,867.26 and 66,503.55 is: 91,774.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,092.13 : 169,867.26 = 66,503.55 : x
  2. Step 2: Convert to fraction form
    123,092.13/169,867.26 = 66,503.55/x
  3. Step 3: Cross multiply
    123,092.13x = 169,867.26 × 66,503.55
  4. Step 4: Simplify right side
    123,092.13x = 11,296,775,818.77
  5. Step 5: Solve for x
    x = 11,296,775,818.77/123,092.13
  6. Step 6: Final answer
    x = 91,774.96

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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.