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Finding the Fourth Proportional to 79,349.55, 119,054.72 and 47,782.17

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Solution

The fourth proportional to 79,349.55, 119,054.72 and 47,782.17 is: 71,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,349.55 : 119,054.72 = 47,782.17 : x
  2. Step 2: Convert to fraction form
    79,349.55/119,054.72 = 47,782.17/x
  3. Step 3: Cross multiply
    79,349.55x = 119,054.72 × 47,782.17
  4. Step 4: Simplify right side
    79,349.55x = 5,688,693,257.07
  5. Step 5: Solve for x
    x = 5,688,693,257.07/79,349.55
  6. Step 6: Final answer
    x = 71,691.56

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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.