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Finding the Fourth Proportional to 103,522.67, 142,866.42 and 63,229.91

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Solution

The fourth proportional to 103,522.67, 142,866.42 and 63,229.91 is: 87,260.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,522.67 : 142,866.42 = 63,229.91 : x
  2. Step 2: Convert to fraction form
    103,522.67/142,866.42 = 63,229.91/x
  3. Step 3: Cross multiply
    103,522.67x = 142,866.42 × 63,229.91
  4. Step 4: Simplify right side
    103,522.67x = 9,033,430,878.62
  5. Step 5: Solve for x
    x = 9,033,430,878.62/103,522.67
  6. Step 6: Final answer
    x = 87,260.41

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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.