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Finding the Fourth Proportional to 181,233.93, 250,111.17 and 100,661.79

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Solution

The fourth proportional to 181,233.93, 250,111.17 and 100,661.79 is: 138,917.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,233.93 : 250,111.17 = 100,661.79 : x
  2. Step 2: Convert to fraction form
    181,233.93/250,111.17 = 100,661.79/x
  3. Step 3: Cross multiply
    181,233.93x = 250,111.17 × 100,661.79
  4. Step 4: Simplify right side
    181,233.93x = 25,176,638,071.19
  5. Step 5: Solve for x
    x = 25,176,638,071.19/181,233.93
  6. Step 6: Final answer
    x = 138,917.91

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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.