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Finding the Fourth Proportional to 103,661.97, 155,550.26 and 96,133.15

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Solution

The fourth proportional to 103,661.97, 155,550.26 and 96,133.15 is: 144,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.97 : 155,550.26 = 96,133.15 : x
  2. Step 2: Convert to fraction form
    103,661.97/155,550.26 = 96,133.15/x
  3. Step 3: Cross multiply
    103,661.97x = 155,550.26 × 96,133.15
  4. Step 4: Simplify right side
    103,661.97x = 14,953,536,477.12
  5. Step 5: Solve for x
    x = 14,953,536,477.12/103,661.97
  6. Step 6: Final answer
    x = 144,252.87

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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.