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Finding the Fourth Proportional to 77,049.74, 106,320.72 and 52,871.44

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Solution

The fourth proportional to 77,049.74, 106,320.72 and 52,871.44 is: 72,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,049.74 : 106,320.72 = 52,871.44 : x
  2. Step 2: Convert to fraction form
    77,049.74/106,320.72 = 52,871.44/x
  3. Step 3: Cross multiply
    77,049.74x = 106,320.72 × 52,871.44
  4. Step 4: Simplify right side
    77,049.74x = 5,621,329,568.24
  5. Step 5: Solve for x
    x = 5,621,329,568.24/77,049.74
  6. Step 6: Final answer
    x = 72,957.15

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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.