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Finding the Fourth Proportional to 250,553.18, 375,789.74 and 73,018.66

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Solution

The fourth proportional to 250,553.18, 375,789.74 and 73,018.66 is: 109,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,553.18 : 375,789.74 = 73,018.66 : x
  2. Step 2: Convert to fraction form
    250,553.18/375,789.74 = 73,018.66/x
  3. Step 3: Cross multiply
    250,553.18x = 375,789.74 × 73,018.66
  4. Step 4: Simplify right side
    250,553.18x = 27,439,663,256.55
  5. Step 5: Solve for x
    x = 27,439,663,256.55/250,553.18
  6. Step 6: Final answer
    x = 109,516.32

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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.