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Finding the Fourth Proportional to 122,892.55, 169,501.17 and 92,679.14

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Solution

The fourth proportional to 122,892.55, 169,501.17 and 92,679.14 is: 127,828.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,892.55 : 169,501.17 = 92,679.14 : x
  2. Step 2: Convert to fraction form
    122,892.55/169,501.17 = 92,679.14/x
  3. Step 3: Cross multiply
    122,892.55x = 169,501.17 × 92,679.14
  4. Step 4: Simplify right side
    122,892.55x = 15,709,223,320.04
  5. Step 5: Solve for x
    x = 15,709,223,320.04/122,892.55
  6. Step 6: Final answer
    x = 127,828.93

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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.