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Finding the Fourth Proportional to 170,759.40, 255,812.70 and 91,847.40

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Solution

The fourth proportional to 170,759.40, 255,812.70 and 91,847.40 is: 137,595.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,759.40 : 255,812.70 = 91,847.40 : x
  2. Step 2: Convert to fraction form
    170,759.40/255,812.70 = 91,847.40/x
  3. Step 3: Cross multiply
    170,759.40x = 255,812.70 × 91,847.40
  4. Step 4: Simplify right side
    170,759.40x = 23,495,731,381.98
  5. Step 5: Solve for x
    x = 23,495,731,381.98/170,759.40
  6. Step 6: Final answer
    x = 137,595.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.