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Finding the Fourth Proportional to 79,254.66, 109,382.62 and 49,049.70

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Solution

The fourth proportional to 79,254.66, 109,382.62 and 49,049.70 is: 67,695.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,254.66 : 109,382.62 = 49,049.70 : x
  2. Step 2: Convert to fraction form
    79,254.66/109,382.62 = 49,049.70/x
  3. Step 3: Cross multiply
    79,254.66x = 109,382.62 × 49,049.70
  4. Step 4: Simplify right side
    79,254.66x = 5,365,184,696.21
  5. Step 5: Solve for x
    x = 5,365,184,696.21/79,254.66
  6. Step 6: Final answer
    x = 67,695.51

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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.