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Finding the Fourth Proportional to 122,893.55, 169,502.55 and 92,680.14

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Solution

The fourth proportional to 122,893.55, 169,502.55 and 92,680.14 is: 127,830.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,893.55 : 169,502.55 = 92,680.14 : x
  2. Step 2: Convert to fraction form
    122,893.55/169,502.55 = 92,680.14/x
  3. Step 3: Cross multiply
    122,893.55x = 169,502.55 × 92,680.14
  4. Step 4: Simplify right side
    122,893.55x = 15,709,520,064.36
  5. Step 5: Solve for x
    x = 15,709,520,064.36/122,893.55
  6. Step 6: Final answer
    x = 127,830.31

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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.