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Finding the Fourth Proportional to 91,552.34, 137,241.90 and 69,028.04

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Solution

The fourth proportional to 91,552.34, 137,241.90 and 69,028.04 is: 103,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,552.34 : 137,241.90 = 69,028.04 : x
  2. Step 2: Convert to fraction form
    91,552.34/137,241.90 = 69,028.04/x
  3. Step 3: Cross multiply
    91,552.34x = 137,241.90 × 69,028.04
  4. Step 4: Simplify right side
    91,552.34x = 9,473,538,676.67
  5. Step 5: Solve for x
    x = 9,473,538,676.67/91,552.34
  6. Step 6: Final answer
    x = 103,476.76

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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.