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Finding the Fourth Proportional to 117,388.62, 176,062.48 and 54,203.36

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Solution

The fourth proportional to 117,388.62, 176,062.48 and 54,203.36 is: 81,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,388.62 : 176,062.48 = 54,203.36 : x
  2. Step 2: Convert to fraction form
    117,388.62/176,062.48 = 54,203.36/x
  3. Step 3: Cross multiply
    117,388.62x = 176,062.48 × 54,203.36
  4. Step 4: Simplify right side
    117,388.62x = 9,543,176,970.11
  5. Step 5: Solve for x
    x = 9,543,176,970.11/117,388.62
  6. Step 6: Final answer
    x = 81,295.59

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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.