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Finding the Fourth Proportional to 133,094.40, 199,787.40 and 83,230.80

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Solution

The fourth proportional to 133,094.40, 199,787.40 and 83,230.80 is: 124,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,094.40 : 199,787.40 = 83,230.80 : x
  2. Step 2: Convert to fraction form
    133,094.40/199,787.40 = 83,230.80/x
  3. Step 3: Cross multiply
    133,094.40x = 199,787.40 × 83,230.80
  4. Step 4: Simplify right side
    133,094.40x = 16,628,465,131.92
  5. Step 5: Solve for x
    x = 16,628,465,131.92/133,094.40
  6. Step 6: Final answer
    x = 124,937.38

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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.