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Finding the Fourth Proportional to 144,950.94, 217,446.92 and 45,121.22

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Solution

The fourth proportional to 144,950.94, 217,446.92 and 45,121.22 is: 67,688.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,950.94 : 217,446.92 = 45,121.22 : x
  2. Step 2: Convert to fraction form
    144,950.94/217,446.92 = 45,121.22/x
  3. Step 3: Cross multiply
    144,950.94x = 217,446.92 × 45,121.22
  4. Step 4: Simplify right side
    144,950.94x = 9,811,470,746.46
  5. Step 5: Solve for x
    x = 9,811,470,746.46/144,950.94
  6. Step 6: Final answer
    x = 67,688.22

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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.