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Finding the Fourth Proportional to 192,949.64, 266,278.72 and 112,364.18

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Solution

The fourth proportional to 192,949.64, 266,278.72 and 112,364.18 is: 155,067.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,949.64 : 266,278.72 = 112,364.18 : x
  2. Step 2: Convert to fraction form
    192,949.64/266,278.72 = 112,364.18/x
  3. Step 3: Cross multiply
    192,949.64x = 266,278.72 × 112,364.18
  4. Step 4: Simplify right side
    192,949.64x = 29,920,190,024.25
  5. Step 5: Solve for x
    x = 29,920,190,024.25/192,949.64
  6. Step 6: Final answer
    x = 155,067.35

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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.