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Finding the Fourth Proportional to 176,443.76, 264,630.66 and 86,447.96

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Solution

The fourth proportional to 176,443.76, 264,630.66 and 86,447.96 is: 129,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,443.76 : 264,630.66 = 86,447.96 : x
  2. Step 2: Convert to fraction form
    176,443.76/264,630.66 = 86,447.96/x
  3. Step 3: Cross multiply
    176,443.76x = 264,630.66 × 86,447.96
  4. Step 4: Simplify right side
    176,443.76x = 22,876,780,710.45
  5. Step 5: Solve for x
    x = 22,876,780,710.45/176,443.76
  6. Step 6: Final answer
    x = 129,654.80

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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.