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Finding the Fourth Proportional to 143,068.68, 214,625.61 and 43,216.47

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Solution

The fourth proportional to 143,068.68, 214,625.61 and 43,216.47 is: 64,831.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,068.68 : 214,625.61 = 43,216.47 : x
  2. Step 2: Convert to fraction form
    143,068.68/214,625.61 = 43,216.47/x
  3. Step 3: Cross multiply
    143,068.68x = 214,625.61 × 43,216.47
  4. Step 4: Simplify right side
    143,068.68x = 9,275,361,235.80
  5. Step 5: Solve for x
    x = 9,275,361,235.80/143,068.68
  6. Step 6: Final answer
    x = 64,831.53

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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.