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Finding the Fourth Proportional to 144,752.75, 199,817.40 and 93,809.21

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Solution

The fourth proportional to 144,752.75, 199,817.40 and 93,809.21 is: 129,494.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,752.75 : 199,817.40 = 93,809.21 : x
  2. Step 2: Convert to fraction form
    144,752.75/199,817.40 = 93,809.21/x
  3. Step 3: Cross multiply
    144,752.75x = 199,817.40 × 93,809.21
  4. Step 4: Simplify right side
    144,752.75x = 18,744,711,969.21
  5. Step 5: Solve for x
    x = 18,744,711,969.21/144,752.75
  6. Step 6: Final answer
    x = 129,494.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.