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Finding the Fourth Proportional to 119,782.98, 165,294.36 and 68,760.36

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Solution

The fourth proportional to 119,782.98, 165,294.36 and 68,760.36 is: 94,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,782.98 : 165,294.36 = 68,760.36 : x
  2. Step 2: Convert to fraction form
    119,782.98/165,294.36 = 68,760.36/x
  3. Step 3: Cross multiply
    119,782.98x = 165,294.36 × 68,760.36
  4. Step 4: Simplify right side
    119,782.98x = 11,365,699,699.57
  5. Step 5: Solve for x
    x = 11,365,699,699.57/119,782.98
  6. Step 6: Final answer
    x = 94,885.77

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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.