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Finding the Fourth Proportional to 170,965.20, 256,447.80 and 162,800.40

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Solution

The fourth proportional to 170,965.20, 256,447.80 and 162,800.40 is: 244,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,965.20 : 256,447.80 = 162,800.40 : x
  2. Step 2: Convert to fraction form
    170,965.20/256,447.80 = 162,800.40/x
  3. Step 3: Cross multiply
    170,965.20x = 256,447.80 × 162,800.40
  4. Step 4: Simplify right side
    170,965.20x = 41,749,804,419.12
  5. Step 5: Solve for x
    x = 41,749,804,419.12/170,965.20
  6. Step 6: Final answer
    x = 244,200.60

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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.