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Finding the Fourth Proportional to 172,489.74, 238,040.47 and 94,967.75

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Solution

The fourth proportional to 172,489.74, 238,040.47 and 94,967.75 is: 131,058.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,489.74 : 238,040.47 = 94,967.75 : x
  2. Step 2: Convert to fraction form
    172,489.74/238,040.47 = 94,967.75/x
  3. Step 3: Cross multiply
    172,489.74x = 238,040.47 × 94,967.75
  4. Step 4: Simplify right side
    172,489.74x = 22,606,167,844.84
  5. Step 5: Solve for x
    x = 22,606,167,844.84/172,489.74
  6. Step 6: Final answer
    x = 131,058.04

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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.