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Finding the Fourth Proportional to 91,161.42, 136,697.10 and 27,966.42

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Solution

The fourth proportional to 91,161.42, 136,697.10 and 27,966.42 is: 41,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,161.42 : 136,697.10 = 27,966.42 : x
  2. Step 2: Convert to fraction form
    91,161.42/136,697.10 = 27,966.42/x
  3. Step 3: Cross multiply
    91,161.42x = 136,697.10 × 27,966.42
  4. Step 4: Simplify right side
    91,161.42x = 3,822,928,511.38
  5. Step 5: Solve for x
    x = 3,822,928,511.38/91,161.42
  6. Step 6: Final answer
    x = 41,935.82

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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.