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Finding the Fourth Proportional to 111,805.80, 167,838.30 and 67,482.60

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Solution

The fourth proportional to 111,805.80, 167,838.30 and 67,482.60 is: 101,302.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,805.80 : 167,838.30 = 67,482.60 : x
  2. Step 2: Convert to fraction form
    111,805.80/167,838.30 = 67,482.60/x
  3. Step 3: Cross multiply
    111,805.80x = 167,838.30 × 67,482.60
  4. Step 4: Simplify right side
    111,805.80x = 11,326,164,863.58
  5. Step 5: Solve for x
    x = 11,326,164,863.58/111,805.80
  6. Step 6: Final answer
    x = 101,302.12

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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.