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Finding the Fourth Proportional to 113,863.68, 157,131.90 and 63,562.68

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Solution

The fourth proportional to 113,863.68, 157,131.90 and 63,562.68 is: 87,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,863.68 : 157,131.90 = 63,562.68 : x
  2. Step 2: Convert to fraction form
    113,863.68/157,131.90 = 63,562.68/x
  3. Step 3: Cross multiply
    113,863.68x = 157,131.90 × 63,562.68
  4. Step 4: Simplify right side
    113,863.68x = 9,987,724,677.49
  5. Step 5: Solve for x
    x = 9,987,724,677.49/113,863.68
  6. Step 6: Final answer
    x = 87,716.51

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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.