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Finding the Fourth Proportional to 234,443.08, 351,707.82 and 76,679.92

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Solution

The fourth proportional to 234,443.08, 351,707.82 and 76,679.92 is: 115,034.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,443.08 : 351,707.82 = 76,679.92 : x
  2. Step 2: Convert to fraction form
    234,443.08/351,707.82 = 76,679.92/x
  3. Step 3: Cross multiply
    234,443.08x = 351,707.82 × 76,679.92
  4. Step 4: Simplify right side
    234,443.08x = 26,968,927,500.97
  5. Step 5: Solve for x
    x = 26,968,927,500.97/234,443.08
  6. Step 6: Final answer
    x = 115,034.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.