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Finding the Fourth Proportional to 243,679.86, 335,947.50 and 170,983.98

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Solution

The fourth proportional to 243,679.86, 335,947.50 and 170,983.98 is: 235,725.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,679.86 : 335,947.50 = 170,983.98 : x
  2. Step 2: Convert to fraction form
    243,679.86/335,947.50 = 170,983.98/x
  3. Step 3: Cross multiply
    243,679.86x = 335,947.50 × 170,983.98
  4. Step 4: Simplify right side
    243,679.86x = 57,441,640,621.05
  5. Step 5: Solve for x
    x = 57,441,640,621.05/243,679.86
  6. Step 6: Final answer
    x = 235,725.84

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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.