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Finding the Fourth Proportional to 132,341.40, 198,512.10 and 76,354.20

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Solution

The fourth proportional to 132,341.40, 198,512.10 and 76,354.20 is: 114,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,341.40 : 198,512.10 = 76,354.20 : x
  2. Step 2: Convert to fraction form
    132,341.40/198,512.10 = 76,354.20/x
  3. Step 3: Cross multiply
    132,341.40x = 198,512.10 × 76,354.20
  4. Step 4: Simplify right side
    132,341.40x = 15,157,232,585.82
  5. Step 5: Solve for x
    x = 15,157,232,585.82/132,341.40
  6. Step 6: Final answer
    x = 114,531.30

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