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Finding the Fourth Proportional to 188,382.31, 260,035.92 and 124,740.61

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Solution

The fourth proportional to 188,382.31, 260,035.92 and 124,740.61 is: 172,187.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,382.31 : 260,035.92 = 124,740.61 : x
  2. Step 2: Convert to fraction form
    188,382.31/260,035.92 = 124,740.61/x
  3. Step 3: Cross multiply
    188,382.31x = 260,035.92 × 124,740.61
  4. Step 4: Simplify right side
    188,382.31x = 32,437,038,632.62
  5. Step 5: Solve for x
    x = 32,437,038,632.62/188,382.31
  6. Step 6: Final answer
    x = 172,187.29

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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.