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Finding the Fourth Proportional to 88,002.40, 131,906.40 and 48,587.80

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Solution

The fourth proportional to 88,002.40, 131,906.40 and 48,587.80 is: 72,828.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,002.40 : 131,906.40 = 48,587.80 : x
  2. Step 2: Convert to fraction form
    88,002.40/131,906.40 = 48,587.80/x
  3. Step 3: Cross multiply
    88,002.40x = 131,906.40 × 48,587.80
  4. Step 4: Simplify right side
    88,002.40x = 6,409,041,781.92
  5. Step 5: Solve for x
    x = 6,409,041,781.92/88,002.40
  6. Step 6: Final answer
    x = 72,828.03

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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.