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Finding the Fourth Proportional to 144,866.94, 199,806.53 and 126,930.75

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Solution

The fourth proportional to 144,866.94, 199,806.53 and 126,930.75 is: 175,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,866.94 : 199,806.53 = 126,930.75 : x
  2. Step 2: Convert to fraction form
    144,866.94/199,806.53 = 126,930.75/x
  3. Step 3: Cross multiply
    144,866.94x = 199,806.53 × 126,930.75
  4. Step 4: Simplify right side
    144,866.94x = 25,361,592,073.14
  5. Step 5: Solve for x
    x = 25,361,592,073.14/144,866.94
  6. Step 6: Final answer
    x = 175,068.18

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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.