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Finding the Fourth Proportional to 132,660.60, 198,971.16 and 48,401.04

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Solution

The fourth proportional to 132,660.60, 198,971.16 and 48,401.04 is: 72,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,660.60 : 198,971.16 = 48,401.04 : x
  2. Step 2: Convert to fraction form
    132,660.60/198,971.16 = 48,401.04/x
  3. Step 3: Cross multiply
    132,660.60x = 198,971.16 × 48,401.04
  4. Step 4: Simplify right side
    132,660.60x = 9,630,411,074.01
  5. Step 5: Solve for x
    x = 9,630,411,074.01/132,660.60
  6. Step 6: Final answer
    x = 72,594.36

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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.