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Finding the Fourth Proportional to 147,324.80, 220,987.20 and 53,818.40

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Solution

The fourth proportional to 147,324.80, 220,987.20 and 53,818.40 is: 80,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,324.80 : 220,987.20 = 53,818.40 : x
  2. Step 2: Convert to fraction form
    147,324.80/220,987.20 = 53,818.40/x
  3. Step 3: Cross multiply
    147,324.80x = 220,987.20 × 53,818.40
  4. Step 4: Simplify right side
    147,324.80x = 11,893,177,524.48
  5. Step 5: Solve for x
    x = 11,893,177,524.48/147,324.80
  6. Step 6: Final answer
    x = 80,727.60

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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.