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Finding the Fourth Proportional to 70,482.03, 105,721.02 and 26,107.80

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Solution

The fourth proportional to 70,482.03, 105,721.02 and 26,107.80 is: 39,160.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,482.03 : 105,721.02 = 26,107.80 : x
  2. Step 2: Convert to fraction form
    70,482.03/105,721.02 = 26,107.80/x
  3. Step 3: Cross multiply
    70,482.03x = 105,721.02 × 26,107.80
  4. Step 4: Simplify right side
    70,482.03x = 2,760,143,245.96
  5. Step 5: Solve for x
    x = 2,760,143,245.96/70,482.03
  6. Step 6: Final answer
    x = 39,160.95

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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.