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Finding the Fourth Proportional to 178,992.75, 247,003.68 and 98,419.71

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Solution

The fourth proportional to 178,992.75, 247,003.68 and 98,419.71 is: 135,815.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,992.75 : 247,003.68 = 98,419.71 : x
  2. Step 2: Convert to fraction form
    178,992.75/247,003.68 = 98,419.71/x
  3. Step 3: Cross multiply
    178,992.75x = 247,003.68 × 98,419.71
  4. Step 4: Simplify right side
    178,992.75x = 24,310,030,554.53
  5. Step 5: Solve for x
    x = 24,310,030,554.53/178,992.75
  6. Step 6: Final answer
    x = 135,815.73

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1.5x scale

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.