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Finding the Fourth Proportional to 218,526.40, 327,749.10 and 60,722.20

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Solution

The fourth proportional to 218,526.40, 327,749.10 and 60,722.20 is: 91,072.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,526.40 : 327,749.10 = 60,722.20 : x
  2. Step 2: Convert to fraction form
    218,526.40/327,749.10 = 60,722.20/x
  3. Step 3: Cross multiply
    218,526.40x = 327,749.10 × 60,722.20
  4. Step 4: Simplify right side
    218,526.40x = 19,901,646,400.02
  5. Step 5: Solve for x
    x = 19,901,646,400.02/218,526.40
  6. Step 6: Final answer
    x = 91,072.05

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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.