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Finding the Fourth Proportional to 269,092.40, 403,350.60 and 91,434.80

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Solution

The fourth proportional to 269,092.40, 403,350.60 and 91,434.80 is: 137,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,092.40 : 403,350.60 = 91,434.80 : x
  2. Step 2: Convert to fraction form
    269,092.40/403,350.60 = 91,434.80/x
  3. Step 3: Cross multiply
    269,092.40x = 403,350.60 × 91,434.80
  4. Step 4: Simplify right side
    269,092.40x = 36,880,281,440.88
  5. Step 5: Solve for x
    x = 36,880,281,440.88/269,092.40
  6. Step 6: Final answer
    x = 137,054.34

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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.