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Finding the Fourth Proportional to 117,550.80, 176,326.20 and 99,836.10

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Solution

The fourth proportional to 117,550.80, 176,326.20 and 99,836.10 is: 149,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,550.80 : 176,326.20 = 99,836.10 : x
  2. Step 2: Convert to fraction form
    117,550.80/176,326.20 = 99,836.10/x
  3. Step 3: Cross multiply
    117,550.80x = 176,326.20 × 99,836.10
  4. Step 4: Simplify right side
    117,550.80x = 17,603,720,135.82
  5. Step 5: Solve for x
    x = 17,603,720,135.82/117,550.80
  6. Step 6: Final answer
    x = 149,754.15

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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.