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Finding the Fourth Proportional to 503,003.93, 754,345.85 and 165,981.76

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Solution

The fourth proportional to 503,003.93, 754,345.85 and 165,981.76 is: 248,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,003.93 : 754,345.85 = 165,981.76 : x
  2. Step 2: Convert to fraction form
    503,003.93/754,345.85 = 165,981.76/x
  3. Step 3: Cross multiply
    503,003.93x = 754,345.85 × 165,981.76
  4. Step 4: Simplify right side
    503,003.93x = 125,207,649,115.92
  5. Step 5: Solve for x
    x = 125,207,649,115.92/503,003.93
  6. Step 6: Final answer
    x = 248,919.83

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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.