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Finding the Fourth Proportional to 122,702.44, 169,334.22 and 71,748.04

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Solution

The fourth proportional to 122,702.44, 169,334.22 and 71,748.04 is: 99,015.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,702.44 : 169,334.22 = 71,748.04 : x
  2. Step 2: Convert to fraction form
    122,702.44/169,334.22 = 71,748.04/x
  3. Step 3: Cross multiply
    122,702.44x = 169,334.22 × 71,748.04
  4. Step 4: Simplify right side
    122,702.44x = 12,149,398,389.93
  5. Step 5: Solve for x
    x = 12,149,398,389.93/122,702.44
  6. Step 6: Final answer
    x = 99,015.13

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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.