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Finding the Fourth Proportional to 316,893.75, 437,313.38 and 173,659.43

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Solution

The fourth proportional to 316,893.75, 437,313.38 and 173,659.43 is: 239,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,893.75 : 437,313.38 = 173,659.43 : x
  2. Step 2: Convert to fraction form
    316,893.75/437,313.38 = 173,659.43/x
  3. Step 3: Cross multiply
    316,893.75x = 437,313.38 × 173,659.43
  4. Step 4: Simplify right side
    316,893.75x = 75,943,589,247.31
  5. Step 5: Solve for x
    x = 75,943,589,247.31/316,893.75
  6. Step 6: Final answer
    x = 239,650.01

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1.5x scale

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.