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Finding the Fourth Proportional to 231,033, 318,826.50 and 125,049

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Solution

The fourth proportional to 231,033, 318,826.50 and 125,049 is: 172,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,033 : 318,826.50 = 125,049 : x
  2. Step 2: Convert to fraction form
    231,033/318,826.50 = 125,049/x
  3. Step 3: Cross multiply
    231,033x = 318,826.50 × 125,049
  4. Step 4: Simplify right side
    231,033x = 39,868,934,998.50
  5. Step 5: Solve for x
    x = 39,868,934,998.50/231,033
  6. Step 6: Final answer
    x = 172,568.14

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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.