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Finding the Fourth Proportional to 111,937.32, 168,152.38 and 67,590.44

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Solution

The fourth proportional to 111,937.32, 168,152.38 and 67,590.44 is: 101,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,937.32 : 168,152.38 = 67,590.44 : x
  2. Step 2: Convert to fraction form
    111,937.32/168,152.38 = 67,590.44/x
  3. Step 3: Cross multiply
    111,937.32x = 168,152.38 × 67,590.44
  4. Step 4: Simplify right side
    111,937.32x = 11,365,493,351.25
  5. Step 5: Solve for x
    x = 11,365,493,351.25/111,937.32
  6. Step 6: Final answer
    x = 101,534.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.