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Finding the Fourth Proportional to 247,044.64, 340,883.90 and 139,575.46

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Solution

The fourth proportional to 247,044.64, 340,883.90 and 139,575.46 is: 192,592.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,044.64 : 340,883.90 = 139,575.46 : x
  2. Step 2: Convert to fraction form
    247,044.64/340,883.90 = 139,575.46/x
  3. Step 3: Cross multiply
    247,044.64x = 340,883.90 × 139,575.46
  4. Step 4: Simplify right side
    247,044.64x = 47,579,026,451.22
  5. Step 5: Solve for x
    x = 47,579,026,451.22/247,044.64
  6. Step 6: Final answer
    x = 192,592.83

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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.