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Finding the Fourth Proportional to 476,613.72, 715,023.36 and 161,063.64

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Solution

The fourth proportional to 476,613.72, 715,023.36 and 161,063.64 is: 241,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,613.72 : 715,023.36 = 161,063.64 : x
  2. Step 2: Convert to fraction form
    476,613.72/715,023.36 = 161,063.64/x
  3. Step 3: Cross multiply
    476,613.72x = 715,023.36 × 161,063.64
  4. Step 4: Simplify right side
    476,613.72x = 115,164,265,046.63
  5. Step 5: Solve for x
    x = 115,164,265,046.63/476,613.72
  6. Step 6: Final answer
    x = 241,630.19

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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.