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Finding the Fourth Proportional to 132,415.60, 198,623.40 and 125,854.60

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Solution

The fourth proportional to 132,415.60, 198,623.40 and 125,854.60 is: 188,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,415.60 : 198,623.40 = 125,854.60 : x
  2. Step 2: Convert to fraction form
    132,415.60/198,623.40 = 125,854.60/x
  3. Step 3: Cross multiply
    132,415.60x = 198,623.40 × 125,854.60
  4. Step 4: Simplify right side
    132,415.60x = 24,997,668,557.64
  5. Step 5: Solve for x
    x = 24,997,668,557.64/132,415.60
  6. Step 6: Final answer
    x = 188,781.90

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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.