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Finding the Fourth Proportional to 276,792.66, 415,188.93 and 198,060.66

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Solution

The fourth proportional to 276,792.66, 415,188.93 and 198,060.66 is: 297,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,792.66 : 415,188.93 = 198,060.66 : x
  2. Step 2: Convert to fraction form
    276,792.66/415,188.93 = 198,060.66/x
  3. Step 3: Cross multiply
    276,792.66x = 415,188.93 × 198,060.66
  4. Step 4: Simplify right side
    276,792.66x = 82,232,593,500.49
  5. Step 5: Solve for x
    x = 82,232,593,500.49/276,792.66
  6. Step 6: Final answer
    x = 297,090.95

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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.