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Finding the Fourth Proportional to 103,801.29, 155,751.14 and 61,764.41

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Solution

The fourth proportional to 103,801.29, 155,751.14 and 61,764.41 is: 92,675.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,801.29 : 155,751.14 = 61,764.41 : x
  2. Step 2: Convert to fraction form
    103,801.29/155,751.14 = 61,764.41/x
  3. Step 3: Cross multiply
    103,801.29x = 155,751.14 × 61,764.41
  4. Step 4: Simplify right side
    103,801.29x = 9,619,876,960.11
  5. Step 5: Solve for x
    x = 9,619,876,960.11/103,801.29
  6. Step 6: Final answer
    x = 92,675.89

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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.