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Finding the Fourth Proportional to 94,736, 142,193.37 and 69,699.80

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Solution

The fourth proportional to 94,736, 142,193.37 and 69,699.80 is: 104,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,736 : 142,193.37 = 69,699.80 : x
  2. Step 2: Convert to fraction form
    94,736/142,193.37 = 69,699.80/x
  3. Step 3: Cross multiply
    94,736x = 142,193.37 × 69,699.80
  4. Step 4: Simplify right side
    94,736x = 9,910,849,450.33
  5. Step 5: Solve for x
    x = 9,910,849,450.33/94,736
  6. Step 6: Final answer
    x = 104,615.45

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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.