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Finding the Fourth Proportional to 70,956.61, 106,377.19 and 26,558.48

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Solution

The fourth proportional to 70,956.61, 106,377.19 and 26,558.48 is: 39,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956.61 : 106,377.19 = 26,558.48 : x
  2. Step 2: Convert to fraction form
    70,956.61/106,377.19 = 26,558.48/x
  3. Step 3: Cross multiply
    70,956.61x = 106,377.19 × 26,558.48
  4. Step 4: Simplify right side
    70,956.61x = 2,825,216,473.07
  5. Step 5: Solve for x
    x = 2,825,216,473.07/70,956.61
  6. Step 6: Final answer
    x = 39,816.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.