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Finding the Fourth Proportional to 131,957.90, 182,092.62 and 74,599.87

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Solution

The fourth proportional to 131,957.90, 182,092.62 and 74,599.87 is: 102,942.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,957.90 : 182,092.62 = 74,599.87 : x
  2. Step 2: Convert to fraction form
    131,957.90/182,092.62 = 74,599.87/x
  3. Step 3: Cross multiply
    131,957.90x = 182,092.62 × 74,599.87
  4. Step 4: Simplify right side
    131,957.90x = 13,584,085,779.96
  5. Step 5: Solve for x
    x = 13,584,085,779.96/131,957.90
  6. Step 6: Final answer
    x = 102,942.57

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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.