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Finding the Fourth Proportional to 73,606.60, 110,424.30 and 31,486.60

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Solution

The fourth proportional to 73,606.60, 110,424.30 and 31,486.60 is: 47,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,606.60 : 110,424.30 = 31,486.60 : x
  2. Step 2: Convert to fraction form
    73,606.60/110,424.30 = 31,486.60/x
  3. Step 3: Cross multiply
    73,606.60x = 110,424.30 × 31,486.60
  4. Step 4: Simplify right side
    73,606.60x = 3,476,885,764.38
  5. Step 5: Solve for x
    x = 3,476,885,764.38/73,606.60
  6. Step 6: Final answer
    x = 47,236.06

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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.