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Finding the Fourth Proportional to 365,018.64, 503,720.46 and 203,876.01

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Solution

The fourth proportional to 365,018.64, 503,720.46 and 203,876.01 is: 281,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,018.64 : 503,720.46 = 203,876.01 : x
  2. Step 2: Convert to fraction form
    365,018.64/503,720.46 = 203,876.01/x
  3. Step 3: Cross multiply
    365,018.64x = 503,720.46 × 203,876.01
  4. Step 4: Simplify right side
    365,018.64x = 102,696,517,540.17
  5. Step 5: Solve for x
    x = 102,696,517,540.17/365,018.64
  6. Step 6: Final answer
    x = 281,345.95

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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.