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Finding the Fourth Proportional to 85,536.66, 128,311.83 and 29,354.16

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Solution

The fourth proportional to 85,536.66, 128,311.83 and 29,354.16 is: 44,033.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536.66 : 128,311.83 = 29,354.16 : x
  2. Step 2: Convert to fraction form
    85,536.66/128,311.83 = 29,354.16/x
  3. Step 3: Cross multiply
    85,536.66x = 128,311.83 × 29,354.16
  4. Step 4: Simplify right side
    85,536.66x = 3,766,485,987.71
  5. Step 5: Solve for x
    x = 3,766,485,987.71/85,536.66
  6. Step 6: Final answer
    x = 44,033.59

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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.