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Finding the Fourth Proportional to 144,445.87, 216,668.17 and 39,264.54

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Solution

The fourth proportional to 144,445.87, 216,668.17 and 39,264.54 is: 58,896.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,445.87 : 216,668.17 = 39,264.54 : x
  2. Step 2: Convert to fraction form
    144,445.87/216,668.17 = 39,264.54/x
  3. Step 3: Cross multiply
    144,445.87x = 216,668.17 × 39,264.54
  4. Step 4: Simplify right side
    144,445.87x = 8,507,376,027.69
  5. Step 5: Solve for x
    x = 8,507,376,027.69/144,445.87
  6. Step 6: Final answer
    x = 58,896.64

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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.