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Finding the Fourth Proportional to 66,377.29, 91,600.30 and 36,162.54

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Solution

The fourth proportional to 66,377.29, 91,600.30 and 36,162.54 is: 49,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,377.29 : 91,600.30 = 36,162.54 : x
  2. Step 2: Convert to fraction form
    66,377.29/91,600.30 = 36,162.54/x
  3. Step 3: Cross multiply
    66,377.29x = 91,600.30 × 36,162.54
  4. Step 4: Simplify right side
    66,377.29x = 3,312,499,512.76
  5. Step 5: Solve for x
    x = 3,312,499,512.76/66,377.29
  6. Step 6: Final answer
    x = 49,904.11

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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.