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Finding the Fourth Proportional to 322,134.05, 483,200.47 and 85,458.13

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Solution

The fourth proportional to 322,134.05, 483,200.47 and 85,458.13 is: 128,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,134.05 : 483,200.47 = 85,458.13 : x
  2. Step 2: Convert to fraction form
    322,134.05/483,200.47 = 85,458.13/x
  3. Step 3: Cross multiply
    322,134.05x = 483,200.47 × 85,458.13
  4. Step 4: Simplify right side
    322,134.05x = 41,293,407,480.14
  5. Step 5: Solve for x
    x = 41,293,407,480.14/322,134.05
  6. Step 6: Final answer
    x = 128,187.03

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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.