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Finding the Fourth Proportional to 119,695.37, 165,178.49 and 65,247.53

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Solution

The fourth proportional to 119,695.37, 165,178.49 and 65,247.53 is: 90,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,695.37 : 165,178.49 = 65,247.53 : x
  2. Step 2: Convert to fraction form
    119,695.37/165,178.49 = 65,247.53/x
  3. Step 3: Cross multiply
    119,695.37x = 165,178.49 × 65,247.53
  4. Step 4: Simplify right side
    119,695.37x = 10,777,487,329.50
  5. Step 5: Solve for x
    x = 10,777,487,329.50/119,695.37
  6. Step 6: Final answer
    x = 90,040.97

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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.