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Finding the Fourth Proportional to 55,701.80, 83,552.70 and 43,260.20

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Solution

The fourth proportional to 55,701.80, 83,552.70 and 43,260.20 is: 64,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,701.80 : 83,552.70 = 43,260.20 : x
  2. Step 2: Convert to fraction form
    55,701.80/83,552.70 = 43,260.20/x
  3. Step 3: Cross multiply
    55,701.80x = 83,552.70 × 43,260.20
  4. Step 4: Simplify right side
    55,701.80x = 3,614,506,512.54
  5. Step 5: Solve for x
    x = 3,614,506,512.54/55,701.80
  6. Step 6: Final answer
    x = 64,890.30

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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.