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Finding the Fourth Proportional to 218,492.94, 327,739.51 and 60,722.76

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Solution

The fourth proportional to 218,492.94, 327,739.51 and 60,722.76 is: 91,084.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,492.94 : 327,739.51 = 60,722.76 : x
  2. Step 2: Convert to fraction form
    218,492.94/327,739.51 = 60,722.76/x
  3. Step 3: Cross multiply
    218,492.94x = 327,739.51 × 60,722.76
  4. Step 4: Simplify right side
    218,492.94x = 19,901,247,608.25
  5. Step 5: Solve for x
    x = 19,901,247,608.25/218,492.94
  6. Step 6: Final answer
    x = 91,084.17

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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.