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Finding the Fourth Proportional to 69,385.40, 104,003.46 and 29,961.08

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Solution

The fourth proportional to 69,385.40, 104,003.46 and 29,961.08 is: 44,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,385.40 : 104,003.46 = 29,961.08 : x
  2. Step 2: Convert to fraction form
    69,385.40/104,003.46 = 29,961.08/x
  3. Step 3: Cross multiply
    69,385.40x = 104,003.46 × 29,961.08
  4. Step 4: Simplify right side
    69,385.40x = 3,116,055,985.34
  5. Step 5: Solve for x
    x = 3,116,055,985.34/69,385.40
  6. Step 6: Final answer
    x = 44,909.39

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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.