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Finding the Fourth Proportional to 117,181.76, 161,710.44 and 63,466.64

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Solution

The fourth proportional to 117,181.76, 161,710.44 and 63,466.64 is: 87,583.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,181.76 : 161,710.44 = 63,466.64 : x
  2. Step 2: Convert to fraction form
    117,181.76/161,710.44 = 63,466.64/x
  3. Step 3: Cross multiply
    117,181.76x = 161,710.44 × 63,466.64
  4. Step 4: Simplify right side
    117,181.76x = 10,263,218,279.72
  5. Step 5: Solve for x
    x = 10,263,218,279.72/117,181.76
  6. Step 6: Final answer
    x = 87,583.75

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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.