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Finding the Fourth Proportional to 210,575.43, 290,593.62 and 119,931.39

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Solution

The fourth proportional to 210,575.43, 290,593.62 and 119,931.39 is: 165,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,575.43 : 290,593.62 = 119,931.39 : x
  2. Step 2: Convert to fraction form
    210,575.43/290,593.62 = 119,931.39/x
  3. Step 3: Cross multiply
    210,575.43x = 290,593.62 × 119,931.39
  4. Step 4: Simplify right side
    210,575.43x = 34,851,296,771.73
  5. Step 5: Solve for x
    x = 34,851,296,771.73/210,575.43
  6. Step 6: Final answer
    x = 165,505.05

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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.