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Finding the Fourth Proportional to 268,767.32, 370,890.80 and 147,908.43

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Solution

The fourth proportional to 268,767.32, 370,890.80 and 147,908.43 is: 204,109.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,767.32 : 370,890.80 = 147,908.43 : x
  2. Step 2: Convert to fraction form
    268,767.32/370,890.80 = 147,908.43/x
  3. Step 3: Cross multiply
    268,767.32x = 370,890.80 × 147,908.43
  4. Step 4: Simplify right side
    268,767.32x = 54,857,875,744.56
  5. Step 5: Solve for x
    x = 54,857,875,744.56/268,767.32
  6. Step 6: Final answer
    x = 204,109.18

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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.