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Finding the Fourth Proportional to 106,956.67, 147,601.95 and 58,557.79

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Solution

The fourth proportional to 106,956.67, 147,601.95 and 58,557.79 is: 80,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,956.67 : 147,601.95 = 58,557.79 : x
  2. Step 2: Convert to fraction form
    106,956.67/147,601.95 = 58,557.79/x
  3. Step 3: Cross multiply
    106,956.67x = 147,601.95 × 58,557.79
  4. Step 4: Simplify right side
    106,956.67x = 8,643,243,991.69
  5. Step 5: Solve for x
    x = 8,643,243,991.69/106,956.67
  6. Step 6: Final answer
    x = 80,810.71

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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.