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Finding the Fourth Proportional to 260,921.68, 360,073.36 and 147,766.48

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Solution

The fourth proportional to 260,921.68, 360,073.36 and 147,766.48 is: 203,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,921.68 : 360,073.36 = 147,766.48 : x
  2. Step 2: Convert to fraction form
    260,921.68/360,073.36 = 147,766.48/x
  3. Step 3: Cross multiply
    260,921.68x = 360,073.36 × 147,766.48
  4. Step 4: Simplify right side
    260,921.68x = 53,206,772,948.97
  5. Step 5: Solve for x
    x = 53,206,772,948.97/260,921.68
  6. Step 6: Final answer
    x = 203,918.56

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1.5x scale

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.