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Finding the Fourth Proportional to 101,392.71, 152,091.11 and 31,272.03

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Solution

The fourth proportional to 101,392.71, 152,091.11 and 31,272.03 is: 46,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,392.71 : 152,091.11 = 31,272.03 : x
  2. Step 2: Convert to fraction form
    101,392.71/152,091.11 = 31,272.03/x
  3. Step 3: Cross multiply
    101,392.71x = 152,091.11 × 31,272.03
  4. Step 4: Simplify right side
    101,392.71x = 4,756,197,754.65
  5. Step 5: Solve for x
    x = 4,756,197,754.65/101,392.71
  6. Step 6: Final answer
    x = 46,908.68

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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.