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Finding the Fourth Proportional to 217,279.60, 325,530.60 and 186,175.60

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Solution

The fourth proportional to 217,279.60, 325,530.60 and 186,175.60 is: 278,930.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,279.60 : 325,530.60 = 186,175.60 : x
  2. Step 2: Convert to fraction form
    217,279.60/325,530.60 = 186,175.60/x
  3. Step 3: Cross multiply
    217,279.60x = 325,530.60 × 186,175.60
  4. Step 4: Simplify right side
    217,279.60x = 60,605,854,773.36
  5. Step 5: Solve for x
    x = 60,605,854,773.36/217,279.60
  6. Step 6: Final answer
    x = 278,930.26

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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.