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Finding the Fourth Proportional to 189,150.66, 261,046.32 and 141,320.97

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Solution

The fourth proportional to 189,150.66, 261,046.32 and 141,320.97 is: 195,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,150.66 : 261,046.32 = 141,320.97 : x
  2. Step 2: Convert to fraction form
    189,150.66/261,046.32 = 141,320.97/x
  3. Step 3: Cross multiply
    189,150.66x = 261,046.32 × 141,320.97
  4. Step 4: Simplify right side
    189,150.66x = 36,891,319,157.33
  5. Step 5: Solve for x
    x = 36,891,319,157.33/189,150.66
  6. Step 6: Final answer
    x = 195,036.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.