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Finding the Fourth Proportional to 317,126.50, 437,647.80 and 173,892.04

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Solution

The fourth proportional to 317,126.50, 437,647.80 and 173,892.04 is: 239,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,126.50 : 437,647.80 = 173,892.04 : x
  2. Step 2: Convert to fraction form
    317,126.50/437,647.80 = 173,892.04/x
  3. Step 3: Cross multiply
    317,126.50x = 437,647.80 × 173,892.04
  4. Step 4: Simplify right side
    317,126.50x = 76,103,468,743.51
  5. Step 5: Solve for x
    x = 76,103,468,743.51/317,126.50
  6. Step 6: Final answer
    x = 239,978.27

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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.