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Finding the Fourth Proportional to 73,141.74, 100,935.99 and 39,607.74

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Solution

The fourth proportional to 73,141.74, 100,935.99 and 39,607.74 is: 54,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,141.74 : 100,935.99 = 39,607.74 : x
  2. Step 2: Convert to fraction form
    73,141.74/100,935.99 = 39,607.74/x
  3. Step 3: Cross multiply
    73,141.74x = 100,935.99 × 39,607.74
  4. Step 4: Simplify right side
    73,141.74x = 3,997,846,448.56
  5. Step 5: Solve for x
    x = 3,997,846,448.56/73,141.74
  6. Step 6: Final answer
    x = 54,658.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.