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Finding the Fourth Proportional to 117,885.26, 176,728.72 and 51,275.23

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Solution

The fourth proportional to 117,885.26, 176,728.72 and 51,275.23 is: 76,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,885.26 : 176,728.72 = 51,275.23 : x
  2. Step 2: Convert to fraction form
    117,885.26/176,728.72 = 51,275.23/x
  3. Step 3: Cross multiply
    117,885.26x = 176,728.72 × 51,275.23
  4. Step 4: Simplify right side
    117,885.26x = 9,061,805,195.60
  5. Step 5: Solve for x
    x = 9,061,805,195.60/117,885.26
  6. Step 6: Final answer
    x = 76,869.70

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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.