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Finding the Fourth Proportional to 181,618.68, 250,627.48 and 99,939.30

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Solution

The fourth proportional to 181,618.68, 250,627.48 and 99,939.30 is: 137,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,618.68 : 250,627.48 = 99,939.30 : x
  2. Step 2: Convert to fraction form
    181,618.68/250,627.48 = 99,939.30/x
  3. Step 3: Cross multiply
    181,618.68x = 250,627.48 × 99,939.30
  4. Step 4: Simplify right side
    181,618.68x = 25,047,533,722.26
  5. Step 5: Solve for x
    x = 25,047,533,722.26/181,618.68
  6. Step 6: Final answer
    x = 137,912.76

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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.