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Finding the Fourth Proportional to 73,141.65, 100,934.90 and 39,607.65

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Solution

The fourth proportional to 73,141.65, 100,934.90 and 39,607.65 is: 54,658.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,141.65 : 100,934.90 = 39,607.65 : x
  2. Step 2: Convert to fraction form
    73,141.65/100,934.90 = 39,607.65/x
  3. Step 3: Cross multiply
    73,141.65x = 100,934.90 × 39,607.65
  4. Step 4: Simplify right side
    73,141.65x = 3,997,794,191.99
  5. Step 5: Solve for x
    x = 3,997,794,191.99/73,141.65
  6. Step 6: Final answer
    x = 54,658.24

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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.