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Finding the Fourth Proportional to 218,759.54, 328,157.82 and 60,988.14

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Solution

The fourth proportional to 218,759.54, 328,157.82 and 60,988.14 is: 91,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,759.54 : 328,157.82 = 60,988.14 : x
  2. Step 2: Convert to fraction form
    218,759.54/328,157.82 = 60,988.14/x
  3. Step 3: Cross multiply
    218,759.54x = 328,157.82 × 60,988.14
  4. Step 4: Simplify right side
    218,759.54x = 20,013,735,068.25
  5. Step 5: Solve for x
    x = 20,013,735,068.25/218,759.54
  6. Step 6: Final answer
    x = 91,487.37

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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.