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Finding the Fourth Proportional to 181,393.02, 272,092.28 and 69,079.46

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Solution

The fourth proportional to 181,393.02, 272,092.28 and 69,079.46 is: 103,620.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,393.02 : 272,092.28 = 69,079.46 : x
  2. Step 2: Convert to fraction form
    181,393.02/272,092.28 = 69,079.46/x
  3. Step 3: Cross multiply
    181,393.02x = 272,092.28 × 69,079.46
  4. Step 4: Simplify right side
    181,393.02x = 18,795,986,066.71
  5. Step 5: Solve for x
    x = 18,795,986,066.71/181,393.02
  6. Step 6: Final answer
    x = 103,620.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.