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Finding the Fourth Proportional to 235,649.42, 353,420.86 and 67,166.11

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Solution

The fourth proportional to 235,649.42, 353,420.86 and 67,166.11 is: 100,733.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,649.42 : 353,420.86 = 67,166.11 : x
  2. Step 2: Convert to fraction form
    235,649.42/353,420.86 = 67,166.11/x
  3. Step 3: Cross multiply
    235,649.42x = 353,420.86 × 67,166.11
  4. Step 4: Simplify right side
    235,649.42x = 23,737,904,359.05
  5. Step 5: Solve for x
    x = 23,737,904,359.05/235,649.42
  6. Step 6: Final answer
    x = 100,733.98

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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.