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Finding the Fourth Proportional to 168,909.71, 232,993.84 and 111,549.56

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Solution

The fourth proportional to 168,909.71, 232,993.84 and 111,549.56 is: 153,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,909.71 : 232,993.84 = 111,549.56 : x
  2. Step 2: Convert to fraction form
    168,909.71/232,993.84 = 111,549.56/x
  3. Step 3: Cross multiply
    168,909.71x = 232,993.84 × 111,549.56
  4. Step 4: Simplify right side
    168,909.71x = 25,990,360,334.71
  5. Step 5: Solve for x
    x = 25,990,360,334.71/168,909.71
  6. Step 6: Final answer
    x = 153,871.32

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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.