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Finding the Fourth Proportional to 144,564.70, 216,879.45 and 55,810.30

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Solution

The fourth proportional to 144,564.70, 216,879.45 and 55,810.30 is: 83,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,564.70 : 216,879.45 = 55,810.30 : x
  2. Step 2: Convert to fraction form
    144,564.70/216,879.45 = 55,810.30/x
  3. Step 3: Cross multiply
    144,564.70x = 216,879.45 × 55,810.30
  4. Step 4: Simplify right side
    144,564.70x = 12,104,107,168.34
  5. Step 5: Solve for x
    x = 12,104,107,168.34/144,564.70
  6. Step 6: Final answer
    x = 83,727.96

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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.