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Finding the Fourth Proportional to 144,580.92, 216,879.90 and 55,834.90

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Solution

The fourth proportional to 144,580.92, 216,879.90 and 55,834.90 is: 83,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,580.92 : 216,879.90 = 55,834.90 : x
  2. Step 2: Convert to fraction form
    144,580.92/216,879.90 = 55,834.90/x
  3. Step 3: Cross multiply
    144,580.92x = 216,879.90 × 55,834.90
  4. Step 4: Simplify right side
    144,580.92x = 12,109,467,528.51
  5. Step 5: Solve for x
    x = 12,109,467,528.51/144,580.92
  6. Step 6: Final answer
    x = 83,755.64

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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.