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Finding the Fourth Proportional to 535,575.40, 803,359.62 and 136,212.73

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Solution

The fourth proportional to 535,575.40, 803,359.62 and 136,212.73 is: 204,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,575.40 : 803,359.62 = 136,212.73 : x
  2. Step 2: Convert to fraction form
    535,575.40/803,359.62 = 136,212.73/x
  3. Step 3: Cross multiply
    535,575.40x = 803,359.62 × 136,212.73
  4. Step 4: Simplify right side
    535,575.40x = 109,427,805,003.56
  5. Step 5: Solve for x
    x = 109,427,805,003.56/535,575.40
  6. Step 6: Final answer
    x = 204,318.21

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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.