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Finding the Fourth Proportional to 70,853.65, 106,277.40 and 26,480.79

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Solution

The fourth proportional to 70,853.65, 106,277.40 and 26,480.79 is: 39,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,853.65 : 106,277.40 = 26,480.79 : x
  2. Step 2: Convert to fraction form
    70,853.65/106,277.40 = 26,480.79/x
  3. Step 3: Cross multiply
    70,853.65x = 106,277.40 × 26,480.79
  4. Step 4: Simplify right side
    70,853.65x = 2,814,308,979.76
  5. Step 5: Solve for x
    x = 2,814,308,979.76/70,853.65
  6. Step 6: Final answer
    x = 39,720.03

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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.