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Finding the Fourth Proportional to 61,206.76, 84,487.62 and 36,077.32

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Solution

The fourth proportional to 61,206.76, 84,487.62 and 36,077.32 is: 49,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,206.76 : 84,487.62 = 36,077.32 : x
  2. Step 2: Convert to fraction form
    61,206.76/84,487.62 = 36,077.32/x
  3. Step 3: Cross multiply
    61,206.76x = 84,487.62 × 36,077.32
  4. Step 4: Simplify right side
    61,206.76x = 3,048,086,902.78
  5. Step 5: Solve for x
    x = 3,048,086,902.78/61,206.76
  6. Step 6: Final answer
    x = 49,799.84

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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.