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Finding the Fourth Proportional to 170,909.40, 256,364.10 and 170,909.40

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Solution

The fourth proportional to 170,909.40, 256,364.10 and 170,909.40 is: 256,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,909.40 : 256,364.10 = 170,909.40 : x
  2. Step 2: Convert to fraction form
    170,909.40/256,364.10 = 170,909.40/x
  3. Step 3: Cross multiply
    170,909.40x = 256,364.10 × 170,909.40
  4. Step 4: Simplify right side
    170,909.40x = 43,815,034,512.54
  5. Step 5: Solve for x
    x = 43,815,034,512.54/170,909.40
  6. Step 6: Final answer
    x = 256,364.10

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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.