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Finding the Fourth Proportional to 79,382.61, 109,529.15 and 44,927.81

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Solution

The fourth proportional to 79,382.61, 109,529.15 and 44,927.81 is: 61,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,382.61 : 109,529.15 = 44,927.81 : x
  2. Step 2: Convert to fraction form
    79,382.61/109,529.15 = 44,927.81/x
  3. Step 3: Cross multiply
    79,382.61x = 109,529.15 × 44,927.81
  4. Step 4: Simplify right side
    79,382.61x = 4,920,904,405.34
  5. Step 5: Solve for x
    x = 4,920,904,405.34/79,382.61
  6. Step 6: Final answer
    x = 61,989.70

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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.