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Finding the Fourth Proportional to 92,242.98, 138,272.09 and 36,005.76

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Solution

The fourth proportional to 92,242.98, 138,272.09 and 36,005.76 is: 53,972.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,242.98 : 138,272.09 = 36,005.76 : x
  2. Step 2: Convert to fraction form
    92,242.98/138,272.09 = 36,005.76/x
  3. Step 3: Cross multiply
    92,242.98x = 138,272.09 × 36,005.76
  4. Step 4: Simplify right side
    92,242.98x = 4,978,591,507.21
  5. Step 5: Solve for x
    x = 4,978,591,507.21/92,242.98
  6. Step 6: Final answer
    x = 53,972.58

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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.