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Finding the Fourth Proportional to 389,364.60, 584,046.90 and 93,876.60

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Solution

The fourth proportional to 389,364.60, 584,046.90 and 93,876.60 is: 140,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,364.60 : 584,046.90 = 93,876.60 : x
  2. Step 2: Convert to fraction form
    389,364.60/584,046.90 = 93,876.60/x
  3. Step 3: Cross multiply
    389,364.60x = 584,046.90 × 93,876.60
  4. Step 4: Simplify right side
    389,364.60x = 54,828,337,212.54
  5. Step 5: Solve for x
    x = 54,828,337,212.54/389,364.60
  6. Step 6: Final answer
    x = 140,814.90

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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.