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Finding the Fourth Proportional to 317,606.58, 438,297.84 and 174,375.86

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Solution

The fourth proportional to 317,606.58, 438,297.84 and 174,375.86 is: 240,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,606.58 : 438,297.84 = 174,375.86 : x
  2. Step 2: Convert to fraction form
    317,606.58/438,297.84 = 174,375.86/x
  3. Step 3: Cross multiply
    317,606.58x = 438,297.84 × 174,375.86
  4. Step 4: Simplify right side
    317,606.58x = 76,428,560,594.65
  5. Step 5: Solve for x
    x = 76,428,560,594.65/317,606.58
  6. Step 6: Final answer
    x = 240,639.10

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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.