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Finding the Fourth Proportional to 144,593.40, 216,879.30 and 60,331.80

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Solution

The fourth proportional to 144,593.40, 216,879.30 and 60,331.80 is: 90,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,593.40 : 216,879.30 = 60,331.80 : x
  2. Step 2: Convert to fraction form
    144,593.40/216,879.30 = 60,331.80/x
  3. Step 3: Cross multiply
    144,593.40x = 216,879.30 × 60,331.80
  4. Step 4: Simplify right side
    144,593.40x = 13,084,718,551.74
  5. Step 5: Solve for x
    x = 13,084,718,551.74/144,593.40
  6. Step 6: Final answer
    x = 90,493.19

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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.