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Finding the Fourth Proportional to 353,561.77, 487,926.10 and 200,606.33

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Solution

The fourth proportional to 353,561.77, 487,926.10 and 200,606.33 is: 276,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,561.77 : 487,926.10 = 200,606.33 : x
  2. Step 2: Convert to fraction form
    353,561.77/487,926.10 = 200,606.33/x
  3. Step 3: Cross multiply
    353,561.77x = 487,926.10 × 200,606.33
  4. Step 4: Simplify right side
    353,561.77x = 97,881,060,789.55
  5. Step 5: Solve for x
    x = 97,881,060,789.55/353,561.77
  6. Step 6: Final answer
    x = 276,842.89

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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.