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Finding the Fourth Proportional to 111,788.28, 167,646.84 and 36,894.48

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Solution

The fourth proportional to 111,788.28, 167,646.84 and 36,894.48 is: 55,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,788.28 : 167,646.84 = 36,894.48 : x
  2. Step 2: Convert to fraction form
    111,788.28/167,646.84 = 36,894.48/x
  3. Step 3: Cross multiply
    111,788.28x = 167,646.84 × 36,894.48
  4. Step 4: Simplify right side
    111,788.28x = 6,185,242,985.44
  5. Step 5: Solve for x
    x = 6,185,242,985.44/111,788.28
  6. Step 6: Final answer
    x = 55,329.98

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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.