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Finding the Fourth Proportional to 111,574.58, 167,310.84 and 66,616.34

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Solution

The fourth proportional to 111,574.58, 167,310.84 and 66,616.34 is: 99,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,574.58 : 167,310.84 = 66,616.34 : x
  2. Step 2: Convert to fraction form
    111,574.58/167,310.84 = 66,616.34/x
  3. Step 3: Cross multiply
    111,574.58x = 167,310.84 × 66,616.34
  4. Step 4: Simplify right side
    111,574.58x = 11,145,635,803.13
  5. Step 5: Solve for x
    x = 11,145,635,803.13/111,574.58
  6. Step 6: Final answer
    x = 99,894.04

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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.