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Finding the Fourth Proportional to 234,473.13, 351,758.90 and 76,689.28

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Solution

The fourth proportional to 234,473.13, 351,758.90 and 76,689.28 is: 115,050.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,473.13 : 351,758.90 = 76,689.28 : x
  2. Step 2: Convert to fraction form
    234,473.13/351,758.90 = 76,689.28/x
  3. Step 3: Cross multiply
    234,473.13x = 351,758.90 × 76,689.28
  4. Step 4: Simplify right side
    234,473.13x = 26,976,137,406.01
  5. Step 5: Solve for x
    x = 26,976,137,406.01/234,473.13
  6. Step 6: Final answer
    x = 115,050.02

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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.