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Finding the Fourth Proportional to 117,963.36, 162,788.60 and 64,248.21

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Solution

The fourth proportional to 117,963.36, 162,788.60 and 64,248.21 is: 88,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,963.36 : 162,788.60 = 64,248.21 : x
  2. Step 2: Convert to fraction form
    117,963.36/162,788.60 = 64,248.21/x
  3. Step 3: Cross multiply
    117,963.36x = 162,788.60 × 64,248.21
  4. Step 4: Simplify right side
    117,963.36x = 10,458,876,319.03
  5. Step 5: Solve for x
    x = 10,458,876,319.03/117,963.36
  6. Step 6: Final answer
    x = 88,662.08

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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.