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Finding the Fourth Proportional to 235,287.13, 324,739.98 and 134,685.13

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Solution

The fourth proportional to 235,287.13, 324,739.98 and 134,685.13 is: 185,890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,287.13 : 324,739.98 = 134,685.13 : x
  2. Step 2: Convert to fraction form
    235,287.13/324,739.98 = 134,685.13/x
  3. Step 3: Cross multiply
    235,287.13x = 324,739.98 × 134,685.13
  4. Step 4: Simplify right side
    235,287.13x = 43,737,644,125.37
  5. Step 5: Solve for x
    x = 43,737,644,125.37/235,287.13
  6. Step 6: Final answer
    x = 185,890.51

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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.