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Finding the Fourth Proportional to 213,168.13, 319,752.21 and 63,410.57

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Solution

The fourth proportional to 213,168.13, 319,752.21 and 63,410.57 is: 95,115.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,168.13 : 319,752.21 = 63,410.57 : x
  2. Step 2: Convert to fraction form
    213,168.13/319,752.21 = 63,410.57/x
  3. Step 3: Cross multiply
    213,168.13x = 319,752.21 × 63,410.57
  4. Step 4: Simplify right side
    213,168.13x = 20,275,669,894.86
  5. Step 5: Solve for x
    x = 20,275,669,894.86/213,168.13
  6. Step 6: Final answer
    x = 95,115.86

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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.