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Finding the Fourth Proportional to 111,773.34, 167,670.95 and 40,715.28

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Solution

The fourth proportional to 111,773.34, 167,670.95 and 40,715.28 is: 61,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,773.34 : 167,670.95 = 40,715.28 : x
  2. Step 2: Convert to fraction form
    111,773.34/167,670.95 = 40,715.28/x
  3. Step 3: Cross multiply
    111,773.34x = 167,670.95 × 40,715.28
  4. Step 4: Simplify right side
    111,773.34x = 6,826,769,473.54
  5. Step 5: Solve for x
    x = 6,826,769,473.54/111,773.34
  6. Step 6: Final answer
    x = 61,076.90

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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.