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Finding the Fourth Proportional to 131,873.76, 197,720.55 and 63,449.19

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Solution

The fourth proportional to 131,873.76, 197,720.55 and 63,449.19 is: 95,130.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,873.76 : 197,720.55 = 63,449.19 : x
  2. Step 2: Convert to fraction form
    131,873.76/197,720.55 = 63,449.19/x
  3. Step 3: Cross multiply
    131,873.76x = 197,720.55 × 63,449.19
  4. Step 4: Simplify right side
    131,873.76x = 12,545,208,743.85
  5. Step 5: Solve for x
    x = 12,545,208,743.85/131,873.76
  6. Step 6: Final answer
    x = 95,130.44

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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.