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Finding the Fourth Proportional to 181,904.10, 251,035.22 and 101,331.61

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Solution

The fourth proportional to 181,904.10, 251,035.22 and 101,331.61 is: 139,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,904.10 : 251,035.22 = 101,331.61 : x
  2. Step 2: Convert to fraction form
    181,904.10/251,035.22 = 101,331.61/x
  3. Step 3: Cross multiply
    181,904.10x = 251,035.22 × 101,331.61
  4. Step 4: Simplify right side
    181,904.10x = 25,437,803,009.30
  5. Step 5: Solve for x
    x = 25,437,803,009.30/181,904.10
  6. Step 6: Final answer
    x = 139,841.83

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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.