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Finding the Fourth Proportional to 144,605.96, 216,626.45 and 99,619.37

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Solution

The fourth proportional to 144,605.96, 216,626.45 and 99,619.37 is: 149,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,605.96 : 216,626.45 = 99,619.37 : x
  2. Step 2: Convert to fraction form
    144,605.96/216,626.45 = 99,619.37/x
  3. Step 3: Cross multiply
    144,605.96x = 216,626.45 × 99,619.37
  4. Step 4: Simplify right side
    144,605.96x = 21,580,190,265.82
  5. Step 5: Solve for x
    x = 21,580,190,265.82/144,605.96
  6. Step 6: Final answer
    x = 149,234.45

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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.