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Finding the Fourth Proportional to 55,195.70, 82,793.55 and 42,073.70

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Solution

The fourth proportional to 55,195.70, 82,793.55 and 42,073.70 is: 63,110.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,195.70 : 82,793.55 = 42,073.70 : x
  2. Step 2: Convert to fraction form
    55,195.70/82,793.55 = 42,073.70/x
  3. Step 3: Cross multiply
    55,195.70x = 82,793.55 × 42,073.70
  4. Step 4: Simplify right side
    55,195.70x = 3,483,430,984.64
  5. Step 5: Solve for x
    x = 3,483,430,984.64/55,195.70
  6. Step 6: Final answer
    x = 63,110.55

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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.