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Finding the Fourth Proportional to 215,988.87, 298,060.47 and 119,201.82

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Solution

The fourth proportional to 215,988.87, 298,060.47 and 119,201.82 is: 164,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,988.87 : 298,060.47 = 119,201.82 : x
  2. Step 2: Convert to fraction form
    215,988.87/298,060.47 = 119,201.82/x
  3. Step 3: Cross multiply
    215,988.87x = 298,060.47 × 119,201.82
  4. Step 4: Simplify right side
    215,988.87x = 35,529,350,494.06
  5. Step 5: Solve for x
    x = 35,529,350,494.06/215,988.87
  6. Step 6: Final answer
    x = 164,496.21

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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.