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Finding the Fourth Proportional to 106,791.90, 147,374.31 and 59,045.34

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Solution

The fourth proportional to 106,791.90, 147,374.31 and 59,045.34 is: 81,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,791.90 : 147,374.31 = 59,045.34 : x
  2. Step 2: Convert to fraction form
    106,791.90/147,374.31 = 59,045.34/x
  3. Step 3: Cross multiply
    106,791.90x = 147,374.31 × 59,045.34
  4. Step 4: Simplify right side
    106,791.90x = 8,701,766,241.22
  5. Step 5: Solve for x
    x = 8,701,766,241.22/106,791.90
  6. Step 6: Final answer
    x = 81,483.39

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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.