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Finding the Fourth Proportional to 117,628.74, 162,328.32 and 63,914.20

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Solution

The fourth proportional to 117,628.74, 162,328.32 and 63,914.20 is: 88,201.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,628.74 : 162,328.32 = 63,914.20 : x
  2. Step 2: Convert to fraction form
    117,628.74/162,328.32 = 63,914.20/x
  3. Step 3: Cross multiply
    117,628.74x = 162,328.32 × 63,914.20
  4. Step 4: Simplify right side
    117,628.74x = 10,375,084,304.32
  5. Step 5: Solve for x
    x = 10,375,084,304.32/117,628.74
  6. Step 6: Final answer
    x = 88,201.95

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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.