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Finding the Fourth Proportional to 79,727.40, 119,360.70 and 48,623.40

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Solution

The fourth proportional to 79,727.40, 119,360.70 and 48,623.40 is: 72,794.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,727.40 : 119,360.70 = 48,623.40 : x
  2. Step 2: Convert to fraction form
    79,727.40/119,360.70 = 48,623.40/x
  3. Step 3: Cross multiply
    79,727.40x = 119,360.70 × 48,623.40
  4. Step 4: Simplify right side
    79,727.40x = 5,803,723,060.38
  5. Step 5: Solve for x
    x = 5,803,723,060.38/79,727.40
  6. Step 6: Final answer
    x = 72,794.59

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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.