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Finding the Fourth Proportional to 234,690.65, 352,050.83 and 90,665.16

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Solution

The fourth proportional to 234,690.65, 352,050.83 and 90,665.16 is: 136,003.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,690.65 : 352,050.83 = 90,665.16 : x
  2. Step 2: Convert to fraction form
    234,690.65/352,050.83 = 90,665.16/x
  3. Step 3: Cross multiply
    234,690.65x = 352,050.83 × 90,665.16
  4. Step 4: Simplify right side
    234,690.65x = 31,918,744,616.68
  5. Step 5: Solve for x
    x = 31,918,744,616.68/234,690.65
  6. Step 6: Final answer
    x = 136,003.48

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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.