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Finding the Fourth Proportional to 92,375.66, 127,478.46 and 49,934.19

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Solution

The fourth proportional to 92,375.66, 127,478.46 and 49,934.19 is: 68,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,375.66 : 127,478.46 = 49,934.19 : x
  2. Step 2: Convert to fraction form
    92,375.66/127,478.46 = 49,934.19/x
  3. Step 3: Cross multiply
    92,375.66x = 127,478.46 × 49,934.19
  4. Step 4: Simplify right side
    92,375.66x = 6,365,533,642.55
  5. Step 5: Solve for x
    x = 6,365,533,642.55/92,375.66
  6. Step 6: Final answer
    x = 68,909.21

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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.