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Finding the Fourth Proportional to 84,479.56, 116,569.24 and 51,310.50

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Solution

The fourth proportional to 84,479.56, 116,569.24 and 51,310.50 is: 70,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,479.56 : 116,569.24 = 51,310.50 : x
  2. Step 2: Convert to fraction form
    84,479.56/116,569.24 = 51,310.50/x
  3. Step 3: Cross multiply
    84,479.56x = 116,569.24 × 51,310.50
  4. Step 4: Simplify right side
    84,479.56x = 5,981,225,989.02
  5. Step 5: Solve for x
    x = 5,981,225,989.02/84,479.56
  6. Step 6: Final answer
    x = 70,800.87

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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.