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Finding the Fourth Proportional to 169,878.75, 234,432.83 and 93,399.15

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Solution

The fourth proportional to 169,878.75, 234,432.83 and 93,399.15 is: 128,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,878.75 : 234,432.83 = 93,399.15 : x
  2. Step 2: Convert to fraction form
    169,878.75/234,432.83 = 93,399.15/x
  3. Step 3: Cross multiply
    169,878.75x = 234,432.83 × 93,399.15
  4. Step 4: Simplify right side
    169,878.75x = 21,895,826,587.10
  5. Step 5: Solve for x
    x = 21,895,826,587.10/169,878.75
  6. Step 6: Final answer
    x = 128,890.91

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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.