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Finding the Fourth Proportional to 200,351.79, 300,458.48 and 58,158.51

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Solution

The fourth proportional to 200,351.79, 300,458.48 and 58,158.51 is: 87,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,351.79 : 300,458.48 = 58,158.51 : x
  2. Step 2: Convert to fraction form
    200,351.79/300,458.48 = 58,158.51/x
  3. Step 3: Cross multiply
    200,351.79x = 300,458.48 × 58,158.51
  4. Step 4: Simplify right side
    200,351.79x = 17,474,218,785.78
  5. Step 5: Solve for x
    x = 17,474,218,785.78/200,351.79
  6. Step 6: Final answer
    x = 87,217.68

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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.