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Finding the Fourth Proportional to 193,305, 266,761.38 and 112,787.88

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Solution

The fourth proportional to 193,305, 266,761.38 and 112,787.88 is: 155,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,305 : 266,761.38 = 112,787.88 : x
  2. Step 2: Convert to fraction form
    193,305/266,761.38 = 112,787.88/x
  3. Step 3: Cross multiply
    193,305x = 266,761.38 × 112,787.88
  4. Step 4: Simplify right side
    193,305x = 30,087,450,516.07
  5. Step 5: Solve for x
    x = 30,087,450,516.07/193,305
  6. Step 6: Final answer
    x = 155,647.55

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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.