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Finding the Fourth Proportional to 269,089.40, 403,941.30 and 158,343.80

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Solution

The fourth proportional to 269,089.40, 403,941.30 and 158,343.80 is: 237,696.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,089.40 : 403,941.30 = 158,343.80 : x
  2. Step 2: Convert to fraction form
    269,089.40/403,941.30 = 158,343.80/x
  3. Step 3: Cross multiply
    269,089.40x = 403,941.30 × 158,343.80
  4. Step 4: Simplify right side
    269,089.40x = 63,961,600,418.94
  5. Step 5: Solve for x
    x = 63,961,600,418.94/269,089.40
  6. Step 6: Final answer
    x = 237,696.47

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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.