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Finding the Fourth Proportional to 125,177.89, 187,766.97 and 31,683.64

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Solution

The fourth proportional to 125,177.89, 187,766.97 and 31,683.64 is: 47,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,177.89 : 187,766.97 = 31,683.64 : x
  2. Step 2: Convert to fraction form
    125,177.89/187,766.97 = 31,683.64/x
  3. Step 3: Cross multiply
    125,177.89x = 187,766.97 × 31,683.64
  4. Step 4: Simplify right side
    125,177.89x = 5,949,141,081.37
  5. Step 5: Solve for x
    x = 5,949,141,081.37/125,177.89
  6. Step 6: Final answer
    x = 47,525.49

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1.5x scale

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.