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Finding the Fourth Proportional to 117,197.77, 161,732.85 and 63,482.65

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Solution

The fourth proportional to 117,197.77, 161,732.85 and 63,482.65 is: 87,606.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,197.77 : 161,732.85 = 63,482.65 : x
  2. Step 2: Convert to fraction form
    117,197.77/161,732.85 = 63,482.65/x
  3. Step 3: Cross multiply
    117,197.77x = 161,732.85 × 63,482.65
  4. Step 4: Simplify right side
    117,197.77x = 10,267,229,910.05
  5. Step 5: Solve for x
    x = 10,267,229,910.05/117,197.77
  6. Step 6: Final answer
    x = 87,606.02

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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.