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Finding the Fourth Proportional to 127,893.60, 176,446.89 and 74,149.02

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Solution

The fourth proportional to 127,893.60, 176,446.89 and 74,149.02 is: 102,298.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,893.60 : 176,446.89 = 74,149.02 : x
  2. Step 2: Convert to fraction form
    127,893.60/176,446.89 = 74,149.02/x
  3. Step 3: Cross multiply
    127,893.60x = 176,446.89 × 74,149.02
  4. Step 4: Simplify right side
    127,893.60x = 13,083,363,975.55
  5. Step 5: Solve for x
    x = 13,083,363,975.55/127,893.60
  6. Step 6: Final answer
    x = 102,298.82

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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.