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Finding the Fourth Proportional to 232,685.92, 349,553.76 and 139,257.28

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Solution

The fourth proportional to 232,685.92, 349,553.76 and 139,257.28 is: 209,200.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,685.92 : 349,553.76 = 139,257.28 : x
  2. Step 2: Convert to fraction form
    232,685.92/349,553.76 = 139,257.28/x
  3. Step 3: Cross multiply
    232,685.92x = 349,553.76 × 139,257.28
  4. Step 4: Simplify right side
    232,685.92x = 48,677,905,831.37
  5. Step 5: Solve for x
    x = 48,677,905,831.37/232,685.92
  6. Step 6: Final answer
    x = 209,200.05

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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.