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Finding the Fourth Proportional to 318,080.42, 438,951.96 and 174,855.14

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Solution

The fourth proportional to 318,080.42, 438,951.96 and 174,855.14 is: 241,300.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,080.42 : 438,951.96 = 174,855.14 : x
  2. Step 2: Convert to fraction form
    318,080.42/438,951.96 = 174,855.14/x
  3. Step 3: Cross multiply
    318,080.42x = 438,951.96 × 174,855.14
  4. Step 4: Simplify right side
    318,080.42x = 76,753,006,419.07
  5. Step 5: Solve for x
    x = 76,753,006,419.07/318,080.42
  6. Step 6: Final answer
    x = 241,300.63

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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.