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Finding the Fourth Proportional to 117,674.30, 162,391.53 and 63,959.31

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Solution

The fourth proportional to 117,674.30, 162,391.53 and 63,959.31 is: 88,264.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,674.30 : 162,391.53 = 63,959.31 : x
  2. Step 2: Convert to fraction form
    117,674.30/162,391.53 = 63,959.31/x
  3. Step 3: Cross multiply
    117,674.30x = 162,391.53 × 63,959.31
  4. Step 4: Simplify right side
    117,674.30x = 10,386,450,208.64
  5. Step 5: Solve for x
    x = 10,386,450,208.64/117,674.30
  6. Step 6: Final answer
    x = 88,264.39

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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.