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Finding the Fourth Proportional to 317,039.64, 437,518.17 and 173,796.54

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Solution

The fourth proportional to 317,039.64, 437,518.17 and 173,796.54 is: 239,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,039.64 : 437,518.17 = 173,796.54 : x
  2. Step 2: Convert to fraction form
    317,039.64/437,518.17 = 173,796.54/x
  3. Step 3: Cross multiply
    317,039.64x = 437,518.17 × 173,796.54
  4. Step 4: Simplify right side
    317,039.64x = 76,039,144,133.13
  5. Step 5: Solve for x
    x = 76,039,144,133.13/317,039.64
  6. Step 6: Final answer
    x = 239,841.13

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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.