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Finding the Fourth Proportional to 177,665.70, 266,498.55 and 165,915.30

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Solution

The fourth proportional to 177,665.70, 266,498.55 and 165,915.30 is: 248,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,665.70 : 266,498.55 = 165,915.30 : x
  2. Step 2: Convert to fraction form
    177,665.70/266,498.55 = 165,915.30/x
  3. Step 3: Cross multiply
    177,665.70x = 266,498.55 × 165,915.30
  4. Step 4: Simplify right side
    177,665.70x = 44,216,186,872.82
  5. Step 5: Solve for x
    x = 44,216,186,872.82/177,665.70
  6. Step 6: Final answer
    x = 248,872.95

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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.