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Finding the Fourth Proportional to 218,754.74, 328,133.48 and 60,984.56

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Solution

The fourth proportional to 218,754.74, 328,133.48 and 60,984.56 is: 91,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,754.74 : 328,133.48 = 60,984.56 : x
  2. Step 2: Convert to fraction form
    218,754.74/328,133.48 = 60,984.56/x
  3. Step 3: Cross multiply
    218,754.74x = 328,133.48 × 60,984.56
  4. Step 4: Simplify right side
    218,754.74x = 20,011,073,953.48
  5. Step 5: Solve for x
    x = 20,011,073,953.48/218,754.74
  6. Step 6: Final answer
    x = 91,477.22

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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.