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Finding the Fourth Proportional to 61,298.46, 84,396.33 and 52,309.89

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Solution

The fourth proportional to 61,298.46, 84,396.33 and 52,309.89 is: 72,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,298.46 : 84,396.33 = 52,309.89 : x
  2. Step 2: Convert to fraction form
    61,298.46/84,396.33 = 52,309.89/x
  3. Step 3: Cross multiply
    61,298.46x = 84,396.33 × 52,309.89
  4. Step 4: Simplify right side
    61,298.46x = 4,414,762,738.70
  5. Step 5: Solve for x
    x = 4,414,762,738.70/61,298.46
  6. Step 6: Final answer
    x = 72,020.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.