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Finding the Fourth Proportional to 317,162.61, 437,684.13 and 171,973.19

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Solution

The fourth proportional to 317,162.61, 437,684.13 and 171,973.19 is: 237,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,162.61 : 437,684.13 = 171,973.19 : x
  2. Step 2: Convert to fraction form
    317,162.61/437,684.13 = 171,973.19/x
  3. Step 3: Cross multiply
    317,162.61x = 437,684.13 × 171,973.19
  4. Step 4: Simplify right side
    317,162.61x = 75,269,933,860.05
  5. Step 5: Solve for x
    x = 75,269,933,860.05/317,162.61
  6. Step 6: Final answer
    x = 237,322.85

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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.