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Finding the Fourth Proportional to 178,488.72, 246,298.74 and 101,992.62

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Solution

The fourth proportional to 178,488.72, 246,298.74 and 101,992.62 is: 140,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,488.72 : 246,298.74 = 101,992.62 : x
  2. Step 2: Convert to fraction form
    178,488.72/246,298.74 = 101,992.62/x
  3. Step 3: Cross multiply
    178,488.72x = 246,298.74 × 101,992.62
  4. Step 4: Simplify right side
    178,488.72x = 25,120,653,795.30
  5. Step 5: Solve for x
    x = 25,120,653,795.30/178,488.72
  6. Step 6: Final answer
    x = 140,740.85

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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.