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Finding the Fourth Proportional to 107,190.35, 147,912.01 and 61,882.95

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Solution

The fourth proportional to 107,190.35, 147,912.01 and 61,882.95 is: 85,392.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,190.35 : 147,912.01 = 61,882.95 : x
  2. Step 2: Convert to fraction form
    107,190.35/147,912.01 = 61,882.95/x
  3. Step 3: Cross multiply
    107,190.35x = 147,912.01 × 61,882.95
  4. Step 4: Simplify right side
    107,190.35x = 9,153,231,364.52
  5. Step 5: Solve for x
    x = 9,153,231,364.52/107,190.35
  6. Step 6: Final answer
    x = 85,392.31

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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.