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Finding the Fourth Proportional to 247,355.99, 341,351.37 and 139,923.73

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Solution

The fourth proportional to 247,355.99, 341,351.37 and 139,923.73 is: 193,094.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,355.99 : 341,351.37 = 139,923.73 : x
  2. Step 2: Convert to fraction form
    247,355.99/341,351.37 = 139,923.73/x
  3. Step 3: Cross multiply
    247,355.99x = 341,351.37 × 139,923.73
  4. Step 4: Simplify right side
    247,355.99x = 47,763,156,077.63
  5. Step 5: Solve for x
    x = 47,763,156,077.63/247,355.99
  6. Step 6: Final answer
    x = 193,094.81

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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.