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Finding the Fourth Proportional to 247,029.39, 340,903.22 and 139,600.71

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Solution

The fourth proportional to 247,029.39, 340,903.22 and 139,600.71 is: 192,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,029.39 : 340,903.22 = 139,600.71 : x
  2. Step 2: Convert to fraction form
    247,029.39/340,903.22 = 139,600.71/x
  3. Step 3: Cross multiply
    247,029.39x = 340,903.22 × 139,600.71
  4. Step 4: Simplify right side
    247,029.39x = 47,590,330,855.28
  5. Step 5: Solve for x
    x = 47,590,330,855.28/247,029.39
  6. Step 6: Final answer
    x = 192,650.48

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1.5x scale

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.