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Finding the Fourth Proportional to 216,164.40, 324,052.20 and 141,320.40

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Solution

The fourth proportional to 216,164.40, 324,052.20 and 141,320.40 is: 211,853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,164.40 : 324,052.20 = 141,320.40 : x
  2. Step 2: Convert to fraction form
    216,164.40/324,052.20 = 141,320.40/x
  3. Step 3: Cross multiply
    216,164.40x = 324,052.20 × 141,320.40
  4. Step 4: Simplify right side
    216,164.40x = 45,795,186,524.88
  5. Step 5: Solve for x
    x = 45,795,186,524.88/216,164.40
  6. Step 6: Final answer
    x = 211,853.51

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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.