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Finding the Fourth Proportional to 187,601.86, 258,866.85 and 149,458.15

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Solution

The fourth proportional to 187,601.86, 258,866.85 and 149,458.15 is: 206,233.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,601.86 : 258,866.85 = 149,458.15 : x
  2. Step 2: Convert to fraction form
    187,601.86/258,866.85 = 149,458.15/x
  3. Step 3: Cross multiply
    187,601.86x = 258,866.85 × 149,458.15
  4. Step 4: Simplify right side
    187,601.86x = 38,689,760,497.33
  5. Step 5: Solve for x
    x = 38,689,760,497.33/187,601.86
  6. Step 6: Final answer
    x = 206,233.35

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1.5x scale

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.