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Finding the Fourth Proportional to 176,717.52, 264,891.12 and 86,635.80

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Solution

The fourth proportional to 176,717.52, 264,891.12 and 86,635.80 is: 129,862.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,717.52 : 264,891.12 = 86,635.80 : x
  2. Step 2: Convert to fraction form
    176,717.52/264,891.12 = 86,635.80/x
  3. Step 3: Cross multiply
    176,717.52x = 264,891.12 × 86,635.80
  4. Step 4: Simplify right side
    176,717.52x = 22,949,054,094.10
  5. Step 5: Solve for x
    x = 22,949,054,094.10/176,717.52
  6. Step 6: Final answer
    x = 129,862.93

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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.