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Finding the Fourth Proportional to 83,751.10, 125,556.03 and 36,330.50

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Solution

The fourth proportional to 83,751.10, 125,556.03 and 36,330.50 is: 54,465.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,751.10 : 125,556.03 = 36,330.50 : x
  2. Step 2: Convert to fraction form
    83,751.10/125,556.03 = 36,330.50/x
  3. Step 3: Cross multiply
    83,751.10x = 125,556.03 × 36,330.50
  4. Step 4: Simplify right side
    83,751.10x = 4,561,513,661.81
  5. Step 5: Solve for x
    x = 4,561,513,661.81/83,751.10
  6. Step 6: Final answer
    x = 54,465.12

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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.