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Finding the Fourth Proportional to 175,643.20, 262,687.20 and 147,649.60

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Solution

The fourth proportional to 175,643.20, 262,687.20 and 147,649.60 is: 220,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,643.20 : 262,687.20 = 147,649.60 : x
  2. Step 2: Convert to fraction form
    175,643.20/262,687.20 = 147,649.60/x
  3. Step 3: Cross multiply
    175,643.20x = 262,687.20 × 147,649.60
  4. Step 4: Simplify right side
    175,643.20x = 38,785,660,005.12
  5. Step 5: Solve for x
    x = 38,785,660,005.12/175,643.20
  6. Step 6: Final answer
    x = 220,820.73

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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.