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Finding the Fourth Proportional to 218,161.48, 327,242.67 and 60,390.40

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Solution

The fourth proportional to 218,161.48, 327,242.67 and 60,390.40 is: 90,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,161.48 : 327,242.67 = 60,390.40 : x
  2. Step 2: Convert to fraction form
    218,161.48/327,242.67 = 60,390.40/x
  3. Step 3: Cross multiply
    218,161.48x = 327,242.67 × 60,390.40
  4. Step 4: Simplify right side
    218,161.48x = 19,762,315,738.37
  5. Step 5: Solve for x
    x = 19,762,315,738.37/218,161.48
  6. Step 6: Final answer
    x = 90,585.72

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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.