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Finding the Fourth Proportional to 268,574.72, 370,642.16 and 147,725.34

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Solution

The fourth proportional to 268,574.72, 370,642.16 and 147,725.34 is: 203,865.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,574.72 : 370,642.16 = 147,725.34 : x
  2. Step 2: Convert to fraction form
    268,574.72/370,642.16 = 147,725.34/x
  3. Step 3: Cross multiply
    268,574.72x = 370,642.16 × 147,725.34
  4. Step 4: Simplify right side
    268,574.72x = 54,753,239,104.33
  5. Step 5: Solve for x
    x = 54,753,239,104.33/268,574.72
  6. Step 6: Final answer
    x = 203,865.95

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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.