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Finding the Fourth Proportional to 181,190.40, 250,045.20 and 100,623.12

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Solution

The fourth proportional to 181,190.40, 250,045.20 and 100,623.12 is: 138,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,190.40 : 250,045.20 = 100,623.12 : x
  2. Step 2: Convert to fraction form
    181,190.40/250,045.20 = 100,623.12/x
  3. Step 3: Cross multiply
    181,190.40x = 250,045.20 × 100,623.12
  4. Step 4: Simplify right side
    181,190.40x = 25,160,328,165.02
  5. Step 5: Solve for x
    x = 25,160,328,165.02/181,190.40
  6. Step 6: Final answer
    x = 138,861.27

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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.