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Finding the Fourth Proportional to 216,630.86, 324,853.34 and 74,490.44

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Solution

The fourth proportional to 216,630.86, 324,853.34 and 74,490.44 is: 111,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,630.86 : 324,853.34 = 74,490.44 : x
  2. Step 2: Convert to fraction form
    216,630.86/324,853.34 = 74,490.44/x
  3. Step 3: Cross multiply
    216,630.86x = 324,853.34 × 74,490.44
  4. Step 4: Simplify right side
    216,630.86x = 24,198,466,235.35
  5. Step 5: Solve for x
    x = 24,198,466,235.35/216,630.86
  6. Step 6: Final answer
    x = 111,703.69

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1.5x scale

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.