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Finding the Fourth Proportional to 181,439.97, 250,396.01 and 100,865.72

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Solution

The fourth proportional to 181,439.97, 250,396.01 and 100,865.72 is: 139,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,439.97 : 250,396.01 = 100,865.72 : x
  2. Step 2: Convert to fraction form
    181,439.97/250,396.01 = 100,865.72/x
  3. Step 3: Cross multiply
    181,439.97x = 250,396.01 × 100,865.72
  4. Step 4: Simplify right side
    181,439.97x = 25,256,372,077.47
  5. Step 5: Solve for x
    x = 25,256,372,077.47/181,439.97
  6. Step 6: Final answer
    x = 139,199.60

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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.