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Finding the Fourth Proportional to 318,603.57, 477,894.21 and 93,967.48

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Solution

The fourth proportional to 318,603.57, 477,894.21 and 93,967.48 is: 140,947.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,603.57 : 477,894.21 = 93,967.48 : x
  2. Step 2: Convert to fraction form
    318,603.57/477,894.21 = 93,967.48/x
  3. Step 3: Cross multiply
    318,603.57x = 477,894.21 × 93,967.48
  4. Step 4: Simplify right side
    318,603.57x = 44,906,514,620.29
  5. Step 5: Solve for x
    x = 44,906,514,620.29/318,603.57
  6. Step 6: Final answer
    x = 140,947.93

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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.