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Finding the Fourth Proportional to 203,170.33, 280,359.79 and 117,068.14

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Solution

The fourth proportional to 203,170.33, 280,359.79 and 117,068.14 is: 161,545.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,170.33 : 280,359.79 = 117,068.14 : x
  2. Step 2: Convert to fraction form
    203,170.33/280,359.79 = 117,068.14/x
  3. Step 3: Cross multiply
    203,170.33x = 280,359.79 × 117,068.14
  4. Step 4: Simplify right side
    203,170.33x = 32,821,199,146.09
  5. Step 5: Solve for x
    x = 32,821,199,146.09/203,170.33
  6. Step 6: Final answer
    x = 161,545.24

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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.