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Finding the Fourth Proportional to 76,889.31, 115,339.49 and 23,574.37

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Solution

The fourth proportional to 76,889.31, 115,339.49 and 23,574.37 is: 35,363.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,889.31 : 115,339.49 = 23,574.37 : x
  2. Step 2: Convert to fraction form
    76,889.31/115,339.49 = 23,574.37/x
  3. Step 3: Cross multiply
    76,889.31x = 115,339.49 × 23,574.37
  4. Step 4: Simplify right side
    76,889.31x = 2,719,055,695.00
  5. Step 5: Solve for x
    x = 2,719,055,695.00/76,889.31
  6. Step 6: Final answer
    x = 35,363.25

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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.