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Finding the Fourth Proportional to 218,725.92, 328,089.03 and 60,958.53

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Solution

The fourth proportional to 218,725.92, 328,089.03 and 60,958.53 is: 91,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,725.92 : 328,089.03 = 60,958.53 : x
  2. Step 2: Convert to fraction form
    218,725.92/328,089.03 = 60,958.53/x
  3. Step 3: Cross multiply
    218,725.92x = 328,089.03 × 60,958.53
  4. Step 4: Simplify right side
    218,725.92x = 19,999,824,977.93
  5. Step 5: Solve for x
    x = 19,999,824,977.93/218,725.92
  6. Step 6: Final answer
    x = 91,437.84

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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.