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Finding the Fourth Proportional to 114,625.90, 172,068.45 and 88,446.70

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Solution

The fourth proportional to 114,625.90, 172,068.45 and 88,446.70 is: 132,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,625.90 : 172,068.45 = 88,446.70 : x
  2. Step 2: Convert to fraction form
    114,625.90/172,068.45 = 88,446.70/x
  3. Step 3: Cross multiply
    114,625.90x = 172,068.45 × 88,446.70
  4. Step 4: Simplify right side
    114,625.90x = 15,218,886,576.62
  5. Step 5: Solve for x
    x = 15,218,886,576.62/114,625.90
  6. Step 6: Final answer
    x = 132,770.05

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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.