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Finding the Fourth Proportional to 115,467.66, 159,336.28 and 64,476.41

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Solution

The fourth proportional to 115,467.66, 159,336.28 and 64,476.41 is: 88,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,467.66 : 159,336.28 = 64,476.41 : x
  2. Step 2: Convert to fraction form
    115,467.66/159,336.28 = 64,476.41/x
  3. Step 3: Cross multiply
    115,467.66x = 159,336.28 × 64,476.41
  4. Step 4: Simplify right side
    115,467.66x = 10,273,430,601.07
  5. Step 5: Solve for x
    x = 10,273,430,601.07/115,467.66
  6. Step 6: Final answer
    x = 88,972.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.