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Finding the Fourth Proportional to 124,585.30, 171,916.67 and 69,390.41

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Solution

The fourth proportional to 124,585.30, 171,916.67 and 69,390.41 is: 95,752.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,585.30 : 171,916.67 = 69,390.41 : x
  2. Step 2: Convert to fraction form
    124,585.30/171,916.67 = 69,390.41/x
  3. Step 3: Cross multiply
    124,585.30x = 171,916.67 × 69,390.41
  4. Step 4: Simplify right side
    124,585.30x = 11,929,367,010.60
  5. Step 5: Solve for x
    x = 11,929,367,010.60/124,585.30
  6. Step 6: Final answer
    x = 95,752.61

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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.