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Finding the Fourth Proportional to 119,915.68, 179,874.24 and 53,340.16

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Solution

The fourth proportional to 119,915.68, 179,874.24 and 53,340.16 is: 80,010.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,915.68 : 179,874.24 = 53,340.16 : x
  2. Step 2: Convert to fraction form
    119,915.68/179,874.24 = 53,340.16/x
  3. Step 3: Cross multiply
    119,915.68x = 179,874.24 × 53,340.16
  4. Step 4: Simplify right side
    119,915.68x = 9,594,520,741.48
  5. Step 5: Solve for x
    x = 9,594,520,741.48/119,915.68
  6. Step 6: Final answer
    x = 80,010.56

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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.