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Finding the Fourth Proportional to 144,903.30, 217,277.19 and 45,020.58

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Solution

The fourth proportional to 144,903.30, 217,277.19 and 45,020.58 is: 67,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,903.30 : 217,277.19 = 45,020.58 : x
  2. Step 2: Convert to fraction form
    144,903.30/217,277.19 = 45,020.58/x
  3. Step 3: Cross multiply
    144,903.30x = 217,277.19 × 45,020.58
  4. Step 4: Simplify right side
    144,903.30x = 9,781,945,114.57
  5. Step 5: Solve for x
    x = 9,781,945,114.57/144,903.30
  6. Step 6: Final answer
    x = 67,506.71

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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.