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Finding the Fourth Proportional to 114,638.60, 171,957.90 and 88,394.60

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Solution

The fourth proportional to 114,638.60, 171,957.90 and 88,394.60 is: 132,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,638.60 : 171,957.90 = 88,394.60 : x
  2. Step 2: Convert to fraction form
    114,638.60/171,957.90 = 88,394.60/x
  3. Step 3: Cross multiply
    114,638.60x = 171,957.90 × 88,394.60
  4. Step 4: Simplify right side
    114,638.60x = 15,200,149,787.34
  5. Step 5: Solve for x
    x = 15,200,149,787.34/114,638.60
  6. Step 6: Final answer
    x = 132,591.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.