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Finding the Fourth Proportional to 107,940.80, 148,951.27 and 59,539.81

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Solution

The fourth proportional to 107,940.80, 148,951.27 and 59,539.81 is: 82,161.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,940.80 : 148,951.27 = 59,539.81 : x
  2. Step 2: Convert to fraction form
    107,940.80/148,951.27 = 59,539.81/x
  3. Step 3: Cross multiply
    107,940.80x = 148,951.27 × 59,539.81
  4. Step 4: Simplify right side
    107,940.80x = 8,868,529,570.30
  5. Step 5: Solve for x
    x = 8,868,529,570.30/107,940.80
  6. Step 6: Final answer
    x = 82,161.05

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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.