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Finding the Fourth Proportional to 70,500.48, 105,717.24 and 40,927.38

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Solution

The fourth proportional to 70,500.48, 105,717.24 and 40,927.38 is: 61,371.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,500.48 : 105,717.24 = 40,927.38 : x
  2. Step 2: Convert to fraction form
    70,500.48/105,717.24 = 40,927.38/x
  3. Step 3: Cross multiply
    70,500.48x = 105,717.24 × 40,927.38
  4. Step 4: Simplify right side
    70,500.48x = 4,326,729,654.03
  5. Step 5: Solve for x
    x = 4,326,729,654.03/70,500.48
  6. Step 6: Final answer
    x = 61,371.63

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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.