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Finding the Fourth Proportional to 181,489.56, 272,228.13 and 69,165.69

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Solution

The fourth proportional to 181,489.56, 272,228.13 and 69,165.69 is: 103,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,489.56 : 272,228.13 = 69,165.69 : x
  2. Step 2: Convert to fraction form
    181,489.56/272,228.13 = 69,165.69/x
  3. Step 3: Cross multiply
    181,489.56x = 272,228.13 × 69,165.69
  4. Step 4: Simplify right side
    181,489.56x = 18,828,846,448.86
  5. Step 5: Solve for x
    x = 18,828,846,448.86/181,489.56
  6. Step 6: Final answer
    x = 103,746.17

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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.