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Finding the Fourth Proportional to 143,247.71, 214,738.01 and 48,411.57

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Solution

The fourth proportional to 143,247.71, 214,738.01 and 48,411.57 is: 72,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,247.71 : 214,738.01 = 48,411.57 : x
  2. Step 2: Convert to fraction form
    143,247.71/214,738.01 = 48,411.57/x
  3. Step 3: Cross multiply
    143,247.71x = 214,738.01 × 48,411.57
  4. Step 4: Simplify right side
    143,247.71x = 10,395,803,960.72
  5. Step 5: Solve for x
    x = 10,395,803,960.72/143,247.71
  6. Step 6: Final answer
    x = 72,572.22

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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.