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Finding the Fourth Proportional to 117,712.66, 162,442.67 and 63,997.67

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Solution

The fourth proportional to 117,712.66, 162,442.67 and 63,997.67 is: 88,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,712.66 : 162,442.67 = 63,997.67 : x
  2. Step 2: Convert to fraction form
    117,712.66/162,442.67 = 63,997.67/x
  3. Step 3: Cross multiply
    117,712.66x = 162,442.67 × 63,997.67
  4. Step 4: Simplify right side
    117,712.66x = 10,395,952,388.58
  5. Step 5: Solve for x
    x = 10,395,952,388.58/117,712.66
  6. Step 6: Final answer
    x = 88,316.35

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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.