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Finding the Fourth Proportional to 75,366.84, 112,902.46 and 43,710.41

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Solution

The fourth proportional to 75,366.84, 112,902.46 and 43,710.41 is: 65,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,366.84 : 112,902.46 = 43,710.41 : x
  2. Step 2: Convert to fraction form
    75,366.84/112,902.46 = 43,710.41/x
  3. Step 3: Cross multiply
    75,366.84x = 112,902.46 × 43,710.41
  4. Step 4: Simplify right side
    75,366.84x = 4,935,013,424.96
  5. Step 5: Solve for x
    x = 4,935,013,424.96/75,366.84
  6. Step 6: Final answer
    x = 65,479.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.