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Finding the Fourth Proportional to 101,169.23, 139,613.99 and 55,846.37

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Solution

The fourth proportional to 101,169.23, 139,613.99 and 55,846.37 is: 77,068.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,169.23 : 139,613.99 = 55,846.37 : x
  2. Step 2: Convert to fraction form
    101,169.23/139,613.99 = 55,846.37/x
  3. Step 3: Cross multiply
    101,169.23x = 139,613.99 × 55,846.37
  4. Step 4: Simplify right side
    101,169.23x = 7,796,933,565.41
  5. Step 5: Solve for x
    x = 7,796,933,565.41/101,169.23
  6. Step 6: Final answer
    x = 77,068.23

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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.