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Finding the Fourth Proportional to 170,221.74, 234,786.51 and 147,520.86

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Solution

The fourth proportional to 170,221.74, 234,786.51 and 147,520.86 is: 203,475.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,221.74 : 234,786.51 = 147,520.86 : x
  2. Step 2: Convert to fraction form
    170,221.74/234,786.51 = 147,520.86/x
  3. Step 3: Cross multiply
    170,221.74x = 234,786.51 × 147,520.86
  4. Step 4: Simplify right side
    170,221.74x = 34,635,907,871.60
  5. Step 5: Solve for x
    x = 34,635,907,871.60/170,221.74
  6. Step 6: Final answer
    x = 203,475.23

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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.