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Finding the Fourth Proportional to 84,618.66, 126,678.92 and 62,530.57

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Solution

The fourth proportional to 84,618.66, 126,678.92 and 62,530.57 is: 93,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,618.66 : 126,678.92 = 62,530.57 : x
  2. Step 2: Convert to fraction form
    84,618.66/126,678.92 = 62,530.57/x
  3. Step 3: Cross multiply
    84,618.66x = 126,678.92 × 62,530.57
  4. Step 4: Simplify right side
    84,618.66x = 7,921,305,074.58
  5. Step 5: Solve for x
    x = 7,921,305,074.58/84,618.66
  6. Step 6: Final answer
    x = 93,611.80

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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.