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Finding the Fourth Proportional to 103,813.22, 155,150.95 and 75,792.29

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Solution

The fourth proportional to 103,813.22, 155,150.95 and 75,792.29 is: 113,273.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,813.22 : 155,150.95 = 75,792.29 : x
  2. Step 2: Convert to fraction form
    103,813.22/155,150.95 = 75,792.29/x
  3. Step 3: Cross multiply
    103,813.22x = 155,150.95 × 75,792.29
  4. Step 4: Simplify right side
    103,813.22x = 11,759,244,641.46
  5. Step 5: Solve for x
    x = 11,759,244,641.46/103,813.22
  6. Step 6: Final answer
    x = 113,273.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.