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Finding the Fourth Proportional to 178,171.83, 245,881.11 and 101,689.38

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Solution

The fourth proportional to 178,171.83, 245,881.11 and 101,689.38 is: 140,333.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,171.83 : 245,881.11 = 101,689.38 : x
  2. Step 2: Convert to fraction form
    178,171.83/245,881.11 = 101,689.38/x
  3. Step 3: Cross multiply
    178,171.83x = 245,881.11 × 101,689.38
  4. Step 4: Simplify right side
    178,171.83x = 25,003,497,629.61
  5. Step 5: Solve for x
    x = 25,003,497,629.61/178,171.83
  6. Step 6: Final answer
    x = 140,333.62

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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.