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Finding the Fourth Proportional to 83,166.80, 114,771.28 and 47,356.96

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Solution

The fourth proportional to 83,166.80, 114,771.28 and 47,356.96 is: 65,353.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,166.80 : 114,771.28 = 47,356.96 : x
  2. Step 2: Convert to fraction form
    83,166.80/114,771.28 = 47,356.96/x
  3. Step 3: Cross multiply
    83,166.80x = 114,771.28 × 47,356.96
  4. Step 4: Simplify right side
    83,166.80x = 5,435,218,460.64
  5. Step 5: Solve for x
    x = 5,435,218,460.64/83,166.80
  6. Step 6: Final answer
    x = 65,353.22

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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.