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Finding the Fourth Proportional to 101,267.71, 151,903.99 and 31,147.63

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Solution

The fourth proportional to 101,267.71, 151,903.99 and 31,147.63 is: 46,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,267.71 : 151,903.99 = 31,147.63 : x
  2. Step 2: Convert to fraction form
    101,267.71/151,903.99 = 31,147.63/x
  3. Step 3: Cross multiply
    101,267.71x = 151,903.99 × 31,147.63
  4. Step 4: Simplify right side
    101,267.71x = 4,731,449,276.04
  5. Step 5: Solve for x
    x = 4,731,449,276.04/101,267.71
  6. Step 6: Final answer
    x = 46,722.19

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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.