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Finding the Fourth Proportional to 66,856.61, 92,264.66 and 38,180.94

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Solution

The fourth proportional to 66,856.61, 92,264.66 and 38,180.94 is: 52,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856.61 : 92,264.66 = 38,180.94 : x
  2. Step 2: Convert to fraction form
    66,856.61/92,264.66 = 38,180.94/x
  3. Step 3: Cross multiply
    66,856.61x = 92,264.66 × 38,180.94
  4. Step 4: Simplify right side
    66,856.61x = 3,522,751,256.68
  5. Step 5: Solve for x
    x = 3,522,751,256.68/66,856.61
  6. Step 6: Final answer
    x = 52,691.15

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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.