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Finding the Fourth Proportional to 197,479.87, 272,521.84 and 106,835.90

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Solution

The fourth proportional to 197,479.87, 272,521.84 and 106,835.90 is: 147,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,479.87 : 272,521.84 = 106,835.90 : x
  2. Step 2: Convert to fraction form
    197,479.87/272,521.84 = 106,835.90/x
  3. Step 3: Cross multiply
    197,479.87x = 272,521.84 × 106,835.90
  4. Step 4: Simplify right side
    197,479.87x = 29,115,116,460.27
  5. Step 5: Solve for x
    x = 29,115,116,460.27/197,479.87
  6. Step 6: Final answer
    x = 147,433.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.