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Finding the Fourth Proportional to 73,126.60, 109,689.90 and 41,936.20

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Solution

The fourth proportional to 73,126.60, 109,689.90 and 41,936.20 is: 62,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,126.60 : 109,689.90 = 41,936.20 : x
  2. Step 2: Convert to fraction form
    73,126.60/109,689.90 = 41,936.20/x
  3. Step 3: Cross multiply
    73,126.60x = 109,689.90 × 41,936.20
  4. Step 4: Simplify right side
    73,126.60x = 4,599,977,584.38
  5. Step 5: Solve for x
    x = 4,599,977,584.38/73,126.60
  6. Step 6: Final answer
    x = 62,904.30

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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.