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Finding the Fourth Proportional to 171,256.60, 256,884.90 and 156,741.40

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Solution

The fourth proportional to 171,256.60, 256,884.90 and 156,741.40 is: 235,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,256.60 : 256,884.90 = 156,741.40 : x
  2. Step 2: Convert to fraction form
    171,256.60/256,884.90 = 156,741.40/x
  3. Step 3: Cross multiply
    171,256.60x = 256,884.90 × 156,741.40
  4. Step 4: Simplify right side
    171,256.60x = 40,264,498,864.86
  5. Step 5: Solve for x
    x = 40,264,498,864.86/171,256.60
  6. Step 6: Final answer
    x = 235,112.10

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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.