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Finding the Fourth Proportional to 115,231.41, 158,935.37 and 88,068.87

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Solution

The fourth proportional to 115,231.41, 158,935.37 and 88,068.87 is: 121,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,231.41 : 158,935.37 = 88,068.87 : x
  2. Step 2: Convert to fraction form
    115,231.41/158,935.37 = 88,068.87/x
  3. Step 3: Cross multiply
    115,231.41x = 158,935.37 × 88,068.87
  4. Step 4: Simplify right side
    115,231.41x = 13,997,257,998.59
  5. Step 5: Solve for x
    x = 13,997,257,998.59/115,231.41
  6. Step 6: Final answer
    x = 121,470.86

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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.