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Finding the Fourth Proportional to 181,233.18, 250,101.81 and 100,668.20

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Solution

The fourth proportional to 181,233.18, 250,101.81 and 100,668.20 is: 138,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,233.18 : 250,101.81 = 100,668.20 : x
  2. Step 2: Convert to fraction form
    181,233.18/250,101.81 = 100,668.20/x
  3. Step 3: Cross multiply
    181,233.18x = 250,101.81 × 100,668.20
  4. Step 4: Simplify right side
    181,233.18x = 25,177,299,185.76
  5. Step 5: Solve for x
    x = 25,177,299,185.76/181,233.18
  6. Step 6: Final answer
    x = 138,922.13

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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.