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Finding the Fourth Proportional to 268,561.16, 370,620.32 and 147,708.56

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Solution

The fourth proportional to 268,561.16, 370,620.32 and 147,708.56 is: 203,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,561.16 : 370,620.32 = 147,708.56 : x
  2. Step 2: Convert to fraction form
    268,561.16/370,620.32 = 147,708.56/x
  3. Step 3: Cross multiply
    268,561.16x = 370,620.32 × 147,708.56
  4. Step 4: Simplify right side
    268,561.16x = 54,743,793,773.94
  5. Step 5: Solve for x
    x = 54,743,793,773.94/268,561.16
  6. Step 6: Final answer
    x = 203,841.07

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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.