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Finding the Fourth Proportional to 95,290.89, 142,916.28 and 61,455.57

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Solution

The fourth proportional to 95,290.89, 142,916.28 and 61,455.57 is: 92,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,290.89 : 142,916.28 = 61,455.57 : x
  2. Step 2: Convert to fraction form
    95,290.89/142,916.28 = 61,455.57/x
  3. Step 3: Cross multiply
    95,290.89x = 142,916.28 × 61,455.57
  4. Step 4: Simplify right side
    95,290.89x = 8,783,001,449.68
  5. Step 5: Solve for x
    x = 8,783,001,449.68/95,290.89
  6. Step 6: Final answer
    x = 92,170.42

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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.