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Finding the Fourth Proportional to 114,067.92, 157,389 and 63,765.20

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Solution

The fourth proportional to 114,067.92, 157,389 and 63,765.20 is: 87,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,067.92 : 157,389 = 63,765.20 : x
  2. Step 2: Convert to fraction form
    114,067.92/157,389 = 63,765.20/x
  3. Step 3: Cross multiply
    114,067.92x = 157,389 × 63,765.20
  4. Step 4: Simplify right side
    114,067.92x = 10,035,941,062.80
  5. Step 5: Solve for x
    x = 10,035,941,062.80/114,067.92
  6. Step 6: Final answer
    x = 87,982.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.