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Finding the Fourth Proportional to 167,356.17, 230,919 and 99,394.44

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Solution

The fourth proportional to 167,356.17, 230,919 and 99,394.44 is: 137,145.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,356.17 : 230,919 = 99,394.44 : x
  2. Step 2: Convert to fraction form
    167,356.17/230,919 = 99,394.44/x
  3. Step 3: Cross multiply
    167,356.17x = 230,919 × 99,394.44
  4. Step 4: Simplify right side
    167,356.17x = 22,952,064,690.36
  5. Step 5: Solve for x
    x = 22,952,064,690.36/167,356.17
  6. Step 6: Final answer
    x = 137,145.02

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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.