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Finding the Fourth Proportional to 92,578.60, 127,776.18 and 54,346.60

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Solution

The fourth proportional to 92,578.60, 127,776.18 and 54,346.60 is: 75,008.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,578.60 : 127,776.18 = 54,346.60 : x
  2. Step 2: Convert to fraction form
    92,578.60/127,776.18 = 54,346.60/x
  3. Step 3: Cross multiply
    92,578.60x = 127,776.18 × 54,346.60
  4. Step 4: Simplify right side
    92,578.60x = 6,944,200,943.99
  5. Step 5: Solve for x
    x = 6,944,200,943.99/92,578.60
  6. Step 6: Final answer
    x = 75,008.71

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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.