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Finding the Fourth Proportional to 117,242.84, 161,794.90 and 63,529.31

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Solution

The fourth proportional to 117,242.84, 161,794.90 and 63,529.31 is: 87,670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,242.84 : 161,794.90 = 63,529.31 : x
  2. Step 2: Convert to fraction form
    117,242.84/161,794.90 = 63,529.31/x
  3. Step 3: Cross multiply
    117,242.84x = 161,794.90 × 63,529.31
  4. Step 4: Simplify right side
    117,242.84x = 10,278,718,842.42
  5. Step 5: Solve for x
    x = 10,278,718,842.42/117,242.84
  6. Step 6: Final answer
    x = 87,670.33

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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.