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Finding the Fourth Proportional to 132,327.90, 198,491.85 and 130,140.90

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Solution

The fourth proportional to 132,327.90, 198,491.85 and 130,140.90 is: 195,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,327.90 : 198,491.85 = 130,140.90 : x
  2. Step 2: Convert to fraction form
    132,327.90/198,491.85 = 130,140.90/x
  3. Step 3: Cross multiply
    132,327.90x = 198,491.85 × 130,140.90
  4. Step 4: Simplify right side
    132,327.90x = 25,831,908,001.67
  5. Step 5: Solve for x
    x = 25,831,908,001.67/132,327.90
  6. Step 6: Final answer
    x = 195,211.35

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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.