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Finding the Fourth Proportional to 178,937.72, 246,934.85 and 98,370.42

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Solution

The fourth proportional to 178,937.72, 246,934.85 and 98,370.42 is: 135,751.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,937.72 : 246,934.85 = 98,370.42 : x
  2. Step 2: Convert to fraction form
    178,937.72/246,934.85 = 98,370.42/x
  3. Step 3: Cross multiply
    178,937.72x = 246,934.85 × 98,370.42
  4. Step 4: Simplify right side
    178,937.72x = 24,291,084,907.14
  5. Step 5: Solve for x
    x = 24,291,084,907.14/178,937.72
  6. Step 6: Final answer
    x = 135,751.62

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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.