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Finding the Fourth Proportional to 85,168.96, 127,666.86 and 35,276.20

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Solution

The fourth proportional to 85,168.96, 127,666.86 and 35,276.20 is: 52,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,168.96 : 127,666.86 = 35,276.20 : x
  2. Step 2: Convert to fraction form
    85,168.96/127,666.86 = 35,276.20/x
  3. Step 3: Cross multiply
    85,168.96x = 127,666.86 × 35,276.20
  4. Step 4: Simplify right side
    85,168.96x = 4,503,601,686.73
  5. Step 5: Solve for x
    x = 4,503,601,686.73/85,168.96
  6. Step 6: Final answer
    x = 52,878.44

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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.