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Finding the Fourth Proportional to 118,163.11, 176,828.32 and 73,810.75

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Solution

The fourth proportional to 118,163.11, 176,828.32 and 73,810.75 is: 110,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,163.11 : 176,828.32 = 73,810.75 : x
  2. Step 2: Convert to fraction form
    118,163.11/176,828.32 = 73,810.75/x
  3. Step 3: Cross multiply
    118,163.11x = 176,828.32 × 73,810.75
  4. Step 4: Simplify right side
    118,163.11x = 13,051,830,920.44
  5. Step 5: Solve for x
    x = 13,051,830,920.44/118,163.11
  6. Step 6: Final answer
    x = 110,456.05

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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.