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Finding the Fourth Proportional to 215,338.47, 297,164.13 and 119,845.17

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Solution

The fourth proportional to 215,338.47, 297,164.13 and 119,845.17 is: 165,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,338.47 : 297,164.13 = 119,845.17 : x
  2. Step 2: Convert to fraction form
    215,338.47/297,164.13 = 119,845.17/x
  3. Step 3: Cross multiply
    215,338.47x = 297,164.13 × 119,845.17
  4. Step 4: Simplify right side
    215,338.47x = 35,613,685,677.75
  5. Step 5: Solve for x
    x = 35,613,685,677.75/215,338.47
  6. Step 6: Final answer
    x = 165,384.69

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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.