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Finding the Fourth Proportional to 235,791.80, 353,637.47 and 67,266.88

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Solution

The fourth proportional to 235,791.80, 353,637.47 and 67,266.88 is: 100,885.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,791.80 : 353,637.47 = 67,266.88 : x
  2. Step 2: Convert to fraction form
    235,791.80/353,637.47 = 67,266.88/x
  3. Step 3: Cross multiply
    235,791.80x = 353,637.47 × 67,266.88
  4. Step 4: Simplify right side
    235,791.80x = 23,788,087,153.47
  5. Step 5: Solve for x
    x = 23,788,087,153.47/235,791.80
  6. Step 6: Final answer
    x = 100,885.98

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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.