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Finding the Fourth Proportional to 107,940.30, 148,950.58 and 59,539.30

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Solution

The fourth proportional to 107,940.30, 148,950.58 and 59,539.30 is: 82,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,940.30 : 148,950.58 = 59,539.30 : x
  2. Step 2: Convert to fraction form
    107,940.30/148,950.58 = 59,539.30/x
  3. Step 3: Cross multiply
    107,940.30x = 148,950.58 × 59,539.30
  4. Step 4: Simplify right side
    107,940.30x = 8,868,413,696.05
  5. Step 5: Solve for x
    x = 8,868,413,696.05/107,940.30
  6. Step 6: Final answer
    x = 82,160.36

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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.