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Finding the Fourth Proportional to 107,469.87, 148,305.30 and 61,527.98

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Solution

The fourth proportional to 107,469.87, 148,305.30 and 61,527.98 is: 84,906.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,469.87 : 148,305.30 = 61,527.98 : x
  2. Step 2: Convert to fraction form
    107,469.87/148,305.30 = 61,527.98/x
  3. Step 3: Cross multiply
    107,469.87x = 148,305.30 × 61,527.98
  4. Step 4: Simplify right side
    107,469.87x = 9,124,924,790.77
  5. Step 5: Solve for x
    x = 9,124,924,790.77/107,469.87
  6. Step 6: Final answer
    x = 84,906.82

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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.