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Finding the Fourth Proportional to 335,414.61, 503,125.44 and 98,761.77

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Solution

The fourth proportional to 335,414.61, 503,125.44 and 98,761.77 is: 148,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,414.61 : 503,125.44 = 98,761.77 : x
  2. Step 2: Convert to fraction form
    335,414.61/503,125.44 = 98,761.77/x
  3. Step 3: Cross multiply
    335,414.61x = 503,125.44 × 98,761.77
  4. Step 4: Simplify right side
    335,414.61x = 49,689,558,986.43
  5. Step 5: Solve for x
    x = 49,689,558,986.43/335,414.61
  6. Step 6: Final answer
    x = 148,143.69

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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.