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Finding the Fourth Proportional to 111,776.94, 154,252.48 and 61,475.94

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Solution

The fourth proportional to 111,776.94, 154,252.48 and 61,475.94 is: 84,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,776.94 : 154,252.48 = 61,475.94 : x
  2. Step 2: Convert to fraction form
    111,776.94/154,252.48 = 61,475.94/x
  3. Step 3: Cross multiply
    111,776.94x = 154,252.48 × 61,475.94
  4. Step 4: Simplify right side
    111,776.94x = 9,482,816,205.33
  5. Step 5: Solve for x
    x = 9,482,816,205.33/111,776.94
  6. Step 6: Final answer
    x = 84,836.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.