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Finding the Fourth Proportional to 313,591.96, 432,759.98 and 170,353.16

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Solution

The fourth proportional to 313,591.96, 432,759.98 and 170,353.16 is: 235,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,591.96 : 432,759.98 = 170,353.16 : x
  2. Step 2: Convert to fraction form
    313,591.96/432,759.98 = 170,353.16/x
  3. Step 3: Cross multiply
    313,591.96x = 432,759.98 × 170,353.16
  4. Step 4: Simplify right side
    313,591.96x = 73,722,030,114.54
  5. Step 5: Solve for x
    x = 73,722,030,114.54/313,591.96
  6. Step 6: Final answer
    x = 235,089.03

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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.