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Finding the Fourth Proportional to 53,232.92, 79,866.66 and 45,394.46

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Solution

The fourth proportional to 53,232.92, 79,866.66 and 45,394.46 is: 68,106.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,232.92 : 79,866.66 = 45,394.46 : x
  2. Step 2: Convert to fraction form
    53,232.92/79,866.66 = 45,394.46/x
  3. Step 3: Cross multiply
    53,232.92x = 79,866.66 × 45,394.46
  4. Step 4: Simplify right side
    53,232.92x = 3,625,503,902.70
  5. Step 5: Solve for x
    x = 3,625,503,902.70/53,232.92
  6. Step 6: Final answer
    x = 68,106.43

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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.