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Finding the Fourth Proportional to 107,935.80, 148,933.50 and 60,187.80

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Solution

The fourth proportional to 107,935.80, 148,933.50 and 60,187.80 is: 83,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,935.80 : 148,933.50 = 60,187.80 : x
  2. Step 2: Convert to fraction form
    107,935.80/148,933.50 = 60,187.80/x
  3. Step 3: Cross multiply
    107,935.80x = 148,933.50 × 60,187.80
  4. Step 4: Simplify right side
    107,935.80x = 8,963,979,711.30
  5. Step 5: Solve for x
    x = 8,963,979,711.30/107,935.80
  6. Step 6: Final answer
    x = 83,049.18

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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.