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Finding the Fourth Proportional to 131,574.60, 197,580.60 and 72,452.70

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Solution

The fourth proportional to 131,574.60, 197,580.60 and 72,452.70 is: 108,799.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,574.60 : 197,580.60 = 72,452.70 : x
  2. Step 2: Convert to fraction form
    131,574.60/197,580.60 = 72,452.70/x
  3. Step 3: Cross multiply
    131,574.60x = 197,580.60 × 72,452.70
  4. Step 4: Simplify right side
    131,574.60x = 14,315,247,937.62
  5. Step 5: Solve for x
    x = 14,315,247,937.62/131,574.60
  6. Step 6: Final answer
    x = 108,799.48

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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.