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Finding the Fourth Proportional to 375,535.92, 517,954.60 and 272,018.83

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Solution

The fourth proportional to 375,535.92, 517,954.60 and 272,018.83 is: 375,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,535.92 : 517,954.60 = 272,018.83 : x
  2. Step 2: Convert to fraction form
    375,535.92/517,954.60 = 272,018.83/x
  3. Step 3: Cross multiply
    375,535.92x = 517,954.60 × 272,018.83
  4. Step 4: Simplify right side
    375,535.92x = 140,893,404,285.12
  5. Step 5: Solve for x
    x = 140,893,404,285.12/375,535.92
  6. Step 6: Final answer
    x = 375,179.57

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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.