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Finding the Fourth Proportional to 91,361.67, 136,977.39 and 35,154.41

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Solution

The fourth proportional to 91,361.67, 136,977.39 and 35,154.41 is: 52,706.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,361.67 : 136,977.39 = 35,154.41 : x
  2. Step 2: Convert to fraction form
    91,361.67/136,977.39 = 35,154.41/x
  3. Step 3: Cross multiply
    91,361.67x = 136,977.39 × 35,154.41
  4. Step 4: Simplify right side
    91,361.67x = 4,815,358,643.90
  5. Step 5: Solve for x
    x = 4,815,358,643.90/91,361.67
  6. Step 6: Final answer
    x = 52,706.55

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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.