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Finding the Fourth Proportional to 137,216.81, 205,612.66 and 95,178.62

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Solution

The fourth proportional to 137,216.81, 205,612.66 and 95,178.62 is: 142,620.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,216.81 : 205,612.66 = 95,178.62 : x
  2. Step 2: Convert to fraction form
    137,216.81/205,612.66 = 95,178.62/x
  3. Step 3: Cross multiply
    137,216.81x = 205,612.66 × 95,178.62
  4. Step 4: Simplify right side
    137,216.81x = 19,569,929,866.33
  5. Step 5: Solve for x
    x = 19,569,929,866.33/137,216.81
  6. Step 6: Final answer
    x = 142,620.50

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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.