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Finding the Fourth Proportional to 61,606.95, 91,964.79 and 54,133.57

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Solution

The fourth proportional to 61,606.95, 91,964.79 and 54,133.57 is: 80,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,606.95 : 91,964.79 = 54,133.57 : x
  2. Step 2: Convert to fraction form
    61,606.95/91,964.79 = 54,133.57/x
  3. Step 3: Cross multiply
    61,606.95x = 91,964.79 × 54,133.57
  4. Step 4: Simplify right side
    61,606.95x = 4,978,382,146.91
  5. Step 5: Solve for x
    x = 4,978,382,146.91/61,606.95
  6. Step 6: Final answer
    x = 80,808.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.