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Finding the Fourth Proportional to 125,862.31, 188,873.12 and 114,040.20

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Solution

The fourth proportional to 125,862.31, 188,873.12 and 114,040.20 is: 171,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,862.31 : 188,873.12 = 114,040.20 : x
  2. Step 2: Convert to fraction form
    125,862.31/188,873.12 = 114,040.20/x
  3. Step 3: Cross multiply
    125,862.31x = 188,873.12 × 114,040.20
  4. Step 4: Simplify right side
    125,862.31x = 21,539,128,731.32
  5. Step 5: Solve for x
    x = 21,539,128,731.32/125,862.31
  6. Step 6: Final answer
    x = 171,132.48

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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.