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Finding the Fourth Proportional to 147,035.78, 220,555 and 41,854.70

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Solution

The fourth proportional to 147,035.78, 220,555 and 41,854.70 is: 62,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,035.78 : 220,555 = 41,854.70 : x
  2. Step 2: Convert to fraction form
    147,035.78/220,555 = 41,854.70/x
  3. Step 3: Cross multiply
    147,035.78x = 220,555 × 41,854.70
  4. Step 4: Simplify right side
    147,035.78x = 9,231,263,358.50
  5. Step 5: Solve for x
    x = 9,231,263,358.50/147,035.78
  6. Step 6: Final answer
    x = 62,782.43

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1.5x scale

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.