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Finding the Fourth Proportional to 95,211.46, 142,837.17 and 28,656.46

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Solution

The fourth proportional to 95,211.46, 142,837.17 and 28,656.46 is: 42,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,211.46 : 142,837.17 = 28,656.46 : x
  2. Step 2: Convert to fraction form
    95,211.46/142,837.17 = 28,656.46/x
  3. Step 3: Cross multiply
    95,211.46x = 142,837.17 × 28,656.46
  4. Step 4: Simplify right side
    95,211.46x = 4,093,207,648.62
  5. Step 5: Solve for x
    x = 4,093,207,648.62/95,211.46
  6. Step 6: Final answer
    x = 42,990.70

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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.