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Finding the Fourth Proportional to 579,214.51, 868,728.82 and 158,391.97

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Solution

The fourth proportional to 579,214.51, 868,728.82 and 158,391.97 is: 237,562.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,214.51 : 868,728.82 = 158,391.97 : x
  2. Step 2: Convert to fraction form
    579,214.51/868,728.82 = 158,391.97/x
  3. Step 3: Cross multiply
    579,214.51x = 868,728.82 × 158,391.97
  4. Step 4: Simplify right side
    579,214.51x = 137,599,668,403.62
  5. Step 5: Solve for x
    x = 137,599,668,403.62/579,214.51
  6. Step 6: Final answer
    x = 237,562.54

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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.