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Finding the Fourth Proportional to 117,832.78, 162,607.87 and 64,116.87

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Solution

The fourth proportional to 117,832.78, 162,607.87 and 64,116.87 is: 88,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,832.78 : 162,607.87 = 64,116.87 : x
  2. Step 2: Convert to fraction form
    117,832.78/162,607.87 = 64,116.87/x
  3. Step 3: Cross multiply
    117,832.78x = 162,607.87 × 64,116.87
  4. Step 4: Simplify right side
    117,832.78x = 10,425,907,661.77
  5. Step 5: Solve for x
    x = 10,425,907,661.77/117,832.78
  6. Step 6: Final answer
    x = 88,480.54

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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.