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Finding the Fourth Proportional to 349,989.96, 482,981.94 and 199,086.60

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Solution

The fourth proportional to 349,989.96, 482,981.94 and 199,086.60 is: 274,737.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,989.96 : 482,981.94 = 199,086.60 : x
  2. Step 2: Convert to fraction form
    349,989.96/482,981.94 = 199,086.60/x
  3. Step 3: Cross multiply
    349,989.96x = 482,981.94 × 199,086.60
  4. Step 4: Simplify right side
    349,989.96x = 96,155,232,296.00
  5. Step 5: Solve for x
    x = 96,155,232,296.00/349,989.96
  6. Step 6: Final answer
    x = 274,737.12

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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.