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Finding the Fourth Proportional to 117,673.94, 162,391.13 and 63,959.09

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Solution

The fourth proportional to 117,673.94, 162,391.13 and 63,959.09 is: 88,264.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,673.94 : 162,391.13 = 63,959.09 : x
  2. Step 2: Convert to fraction form
    117,673.94/162,391.13 = 63,959.09/x
  3. Step 3: Cross multiply
    117,673.94x = 162,391.13 × 63,959.09
  4. Step 4: Simplify right side
    117,673.94x = 10,386,387,767.12
  5. Step 5: Solve for x
    x = 10,386,387,767.12/117,673.94
  6. Step 6: Final answer
    x = 88,264.13

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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.