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Finding the Fourth Proportional to 127,371.87, 190,876.77 and 93,828.15

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Solution

The fourth proportional to 127,371.87, 190,876.77 and 93,828.15 is: 140,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,371.87 : 190,876.77 = 93,828.15 : x
  2. Step 2: Convert to fraction form
    127,371.87/190,876.77 = 93,828.15/x
  3. Step 3: Cross multiply
    127,371.87x = 190,876.77 × 93,828.15
  4. Step 4: Simplify right side
    127,371.87x = 17,909,614,207.08
  5. Step 5: Solve for x
    x = 17,909,614,207.08/127,371.87
  6. Step 6: Final answer
    x = 140,608.87

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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.