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Finding the Fourth Proportional to 318,266.34, 439,198.79 and 175,026.39

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Solution

The fourth proportional to 318,266.34, 439,198.79 and 175,026.39 is: 241,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,266.34 : 439,198.79 = 175,026.39 : x
  2. Step 2: Convert to fraction form
    318,266.34/439,198.79 = 175,026.39/x
  3. Step 3: Cross multiply
    318,266.34x = 439,198.79 × 175,026.39
  4. Step 4: Simplify right side
    318,266.34x = 76,871,377,830.94
  5. Step 5: Solve for x
    x = 76,871,377,830.94/318,266.34
  6. Step 6: Final answer
    x = 241,531.60

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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.