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Finding the Fourth Proportional to 91,091.84, 136,641.84 and 27,907.34

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Solution

The fourth proportional to 91,091.84, 136,641.84 and 27,907.34 is: 41,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,091.84 : 136,641.84 = 27,907.34 : x
  2. Step 2: Convert to fraction form
    91,091.84/136,641.84 = 27,907.34/x
  3. Step 3: Cross multiply
    91,091.84x = 136,641.84 × 27,907.34
  4. Step 4: Simplify right side
    91,091.84x = 3,813,309,499.24
  5. Step 5: Solve for x
    x = 3,813,309,499.24/91,091.84
  6. Step 6: Final answer
    x = 41,862.25

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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.