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Finding the Fourth Proportional to 103,406.90, 155,135.30 and 35,929.11

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Solution

The fourth proportional to 103,406.90, 155,135.30 and 35,929.11 is: 53,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,406.90 : 155,135.30 = 35,929.11 : x
  2. Step 2: Convert to fraction form
    103,406.90/155,135.30 = 35,929.11/x
  3. Step 3: Cross multiply
    103,406.90x = 155,135.30 × 35,929.11
  4. Step 4: Simplify right side
    103,406.90x = 5,573,873,078.94
  5. Step 5: Solve for x
    x = 5,573,873,078.94/103,406.90
  6. Step 6: Final answer
    x = 53,902.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.