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Finding the Fourth Proportional to 117,935.34, 162,750.78 and 64,220.34

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Solution

The fourth proportional to 117,935.34, 162,750.78 and 64,220.34 is: 88,624.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,935.34 : 162,750.78 = 64,220.34 : x
  2. Step 2: Convert to fraction form
    117,935.34/162,750.78 = 64,220.34/x
  3. Step 3: Cross multiply
    117,935.34x = 162,750.78 × 64,220.34
  4. Step 4: Simplify right side
    117,935.34x = 10,451,910,426.87
  5. Step 5: Solve for x
    x = 10,451,910,426.87/117,935.34
  6. Step 6: Final answer
    x = 88,624.08

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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.