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Finding the Fourth Proportional to 111,778.34, 167,667.48 and 28,672.34

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Solution

The fourth proportional to 111,778.34, 167,667.48 and 28,672.34 is: 43,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,778.34 : 167,667.48 = 28,672.34 : x
  2. Step 2: Convert to fraction form
    111,778.34/167,667.48 = 28,672.34/x
  3. Step 3: Cross multiply
    111,778.34x = 167,667.48 × 28,672.34
  4. Step 4: Simplify right side
    111,778.34x = 4,807,418,155.17
  5. Step 5: Solve for x
    x = 4,807,418,155.17/111,778.34
  6. Step 6: Final answer
    x = 43,008.50

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1.5x scale

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.