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Finding the Fourth Proportional to 173,880.68, 239,870.56 and 113,423.88

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Solution

The fourth proportional to 173,880.68, 239,870.56 and 113,423.88 is: 156,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,880.68 : 239,870.56 = 113,423.88 : x
  2. Step 2: Convert to fraction form
    173,880.68/239,870.56 = 113,423.88/x
  3. Step 3: Cross multiply
    173,880.68x = 239,870.56 × 113,423.88
  4. Step 4: Simplify right side
    173,880.68x = 27,207,049,612.97
  5. Step 5: Solve for x
    x = 27,207,049,612.97/173,880.68
  6. Step 6: Final answer
    x = 156,469.65

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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.