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Finding the Fourth Proportional to 231,694.08, 319,820.16 and 141,008.64

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Solution

The fourth proportional to 231,694.08, 319,820.16 and 141,008.64 is: 194,642.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,694.08 : 319,820.16 = 141,008.64 : x
  2. Step 2: Convert to fraction form
    231,694.08/319,820.16 = 141,008.64/x
  3. Step 3: Cross multiply
    231,694.08x = 319,820.16 × 141,008.64
  4. Step 4: Simplify right side
    231,694.08x = 45,097,405,806.18
  5. Step 5: Solve for x
    x = 45,097,405,806.18/231,694.08
  6. Step 6: Final answer
    x = 194,642.03

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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.