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Finding the Fourth Proportional to 317,342.93, 476,093.18 and 157,493.88

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Solution

The fourth proportional to 317,342.93, 476,093.18 and 157,493.88 is: 236,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,342.93 : 476,093.18 = 157,493.88 : x
  2. Step 2: Convert to fraction form
    317,342.93/476,093.18 = 157,493.88/x
  3. Step 3: Cross multiply
    317,342.93x = 476,093.18 × 157,493.88
  4. Step 4: Simplify right side
    317,342.93x = 74,981,763,748.22
  5. Step 5: Solve for x
    x = 74,981,763,748.22/317,342.93
  6. Step 6: Final answer
    x = 236,279.93

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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.