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Finding the Fourth Proportional to 181,984.52, 251,139.62 and 105,548.91

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Solution

The fourth proportional to 181,984.52, 251,139.62 and 105,548.91 is: 145,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,984.52 : 251,139.62 = 105,548.91 : x
  2. Step 2: Convert to fraction form
    181,984.52/251,139.62 = 105,548.91/x
  3. Step 3: Cross multiply
    181,984.52x = 251,139.62 × 105,548.91
  4. Step 4: Simplify right side
    181,984.52x = 26,507,512,470.91
  5. Step 5: Solve for x
    x = 26,507,512,470.91/181,984.52
  6. Step 6: Final answer
    x = 145,658.06

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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.