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Finding the Fourth Proportional to 70,474.80, 105,710.14 and 26,100.57

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Solution

The fourth proportional to 70,474.80, 105,710.14 and 26,100.57 is: 39,150.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,474.80 : 105,710.14 = 26,100.57 : x
  2. Step 2: Convert to fraction form
    70,474.80/105,710.14 = 26,100.57/x
  3. Step 3: Cross multiply
    70,474.80x = 105,710.14 × 26,100.57
  4. Step 4: Simplify right side
    70,474.80x = 2,759,094,908.78
  5. Step 5: Solve for x
    x = 2,759,094,908.78/70,474.80
  6. Step 6: Final answer
    x = 39,150.09

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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.