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Finding the Fourth Proportional to 318,068.67, 438,935.73 and 174,843.39

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Solution

The fourth proportional to 318,068.67, 438,935.73 and 174,843.39 is: 241,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,068.67 : 438,935.73 = 174,843.39 : x
  2. Step 2: Convert to fraction form
    318,068.67/438,935.73 = 174,843.39/x
  3. Step 3: Cross multiply
    318,068.67x = 438,935.73 × 174,843.39
  4. Step 4: Simplify right side
    318,068.67x = 76,745,011,025.32
  5. Step 5: Solve for x
    x = 76,745,011,025.32/318,068.67
  6. Step 6: Final answer
    x = 241,284.41

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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.