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Finding the Fourth Proportional to 317,074.60, 437,561.22 and 173,840.68

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Solution

The fourth proportional to 317,074.60, 437,561.22 and 173,840.68 is: 239,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,074.60 : 437,561.22 = 173,840.68 : x
  2. Step 2: Convert to fraction form
    317,074.60/437,561.22 = 173,840.68/x
  3. Step 3: Cross multiply
    317,074.60x = 437,561.22 × 173,840.68
  4. Step 4: Simplify right side
    317,074.60x = 76,065,940,026.43
  5. Step 5: Solve for x
    x = 76,065,940,026.43/317,074.60
  6. Step 6: Final answer
    x = 239,899.19

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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.