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Finding the Fourth Proportional to 91,141.72, 136,716.67 and 27,957.24

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Solution

The fourth proportional to 91,141.72, 136,716.67 and 27,957.24 is: 41,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,141.72 : 136,716.67 = 27,957.24 : x
  2. Step 2: Convert to fraction form
    91,141.72/136,716.67 = 27,957.24/x
  3. Step 3: Cross multiply
    91,141.72x = 136,716.67 × 27,957.24
  4. Step 4: Simplify right side
    91,141.72x = 3,822,220,755.19
  5. Step 5: Solve for x
    x = 3,822,220,755.19/91,141.72
  6. Step 6: Final answer
    x = 41,937.11

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1.5x scale

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.