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Finding the Fourth Proportional to 210,224.80, 315,337.20 and 163,223.20

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Solution

The fourth proportional to 210,224.80, 315,337.20 and 163,223.20 is: 244,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,224.80 : 315,337.20 = 163,223.20 : x
  2. Step 2: Convert to fraction form
    210,224.80/315,337.20 = 163,223.20/x
  3. Step 3: Cross multiply
    210,224.80x = 315,337.20 × 163,223.20
  4. Step 4: Simplify right side
    210,224.80x = 51,470,346,863.04
  5. Step 5: Solve for x
    x = 51,470,346,863.04/210,224.80
  6. Step 6: Final answer
    x = 244,834.80

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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.