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Finding the Fourth Proportional to 79,165.95, 109,246.88 and 45,173.82

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Solution

The fourth proportional to 79,165.95, 109,246.88 and 45,173.82 is: 62,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,165.95 : 109,246.88 = 45,173.82 : x
  2. Step 2: Convert to fraction form
    79,165.95/109,246.88 = 45,173.82/x
  3. Step 3: Cross multiply
    79,165.95x = 109,246.88 × 45,173.82
  4. Step 4: Simplify right side
    79,165.95x = 4,935,098,892.68
  5. Step 5: Solve for x
    x = 4,935,098,892.68/79,165.95
  6. Step 6: Final answer
    x = 62,338.66

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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.