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Finding the Fourth Proportional to 124,863.80, 187,295.70 and 82,873.40

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Solution

The fourth proportional to 124,863.80, 187,295.70 and 82,873.40 is: 124,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,863.80 : 187,295.70 = 82,873.40 : x
  2. Step 2: Convert to fraction form
    124,863.80/187,295.70 = 82,873.40/x
  3. Step 3: Cross multiply
    124,863.80x = 187,295.70 × 82,873.40
  4. Step 4: Simplify right side
    124,863.80x = 15,521,831,464.38
  5. Step 5: Solve for x
    x = 15,521,831,464.38/124,863.80
  6. Step 6: Final answer
    x = 124,310.10

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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.