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Finding the Fourth Proportional to 234,690, 351,672.66 and 158,489.91

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Solution

The fourth proportional to 234,690, 351,672.66 and 158,489.91 is: 237,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,690 : 351,672.66 = 158,489.91 : x
  2. Step 2: Convert to fraction form
    234,690/351,672.66 = 158,489.91/x
  3. Step 3: Cross multiply
    234,690x = 351,672.66 × 158,489.91
  4. Step 4: Simplify right side
    234,690x = 55,736,568,232.86
  5. Step 5: Solve for x
    x = 55,736,568,232.86/234,690
  6. Step 6: Final answer
    x = 237,490.17

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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.