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Finding the Fourth Proportional to 360,726.51, 540,174.42 and 216,542.62

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Solution

The fourth proportional to 360,726.51, 540,174.42 and 216,542.62 is: 324,264.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,726.51 : 540,174.42 = 216,542.62 : x
  2. Step 2: Convert to fraction form
    360,726.51/540,174.42 = 216,542.62/x
  3. Step 3: Cross multiply
    360,726.51x = 540,174.42 × 216,542.62
  4. Step 4: Simplify right side
    360,726.51x = 116,970,781,800.52
  5. Step 5: Solve for x
    x = 116,970,781,800.52/360,726.51
  6. Step 6: Final answer
    x = 324,264.44

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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.