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Finding the Fourth Proportional to 125,718.64, 188,696.43 and 45,833.85

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Solution

The fourth proportional to 125,718.64, 188,696.43 and 45,833.85 is: 68,793.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,718.64 : 188,696.43 = 45,833.85 : x
  2. Step 2: Convert to fraction form
    125,718.64/188,696.43 = 45,833.85/x
  3. Step 3: Cross multiply
    125,718.64x = 188,696.43 × 45,833.85
  4. Step 4: Simplify right side
    125,718.64x = 8,648,683,868.16
  5. Step 5: Solve for x
    x = 8,648,683,868.16/125,718.64
  6. Step 6: Final answer
    x = 68,793.97

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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.