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Finding the Fourth Proportional to 117,703.94, 176,633.67 and 55,379.30

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Solution

The fourth proportional to 117,703.94, 176,633.67 and 55,379.30 is: 83,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.94 : 176,633.67 = 55,379.30 : x
  2. Step 2: Convert to fraction form
    117,703.94/176,633.67 = 55,379.30/x
  3. Step 3: Cross multiply
    117,703.94x = 176,633.67 × 55,379.30
  4. Step 4: Simplify right side
    117,703.94x = 9,781,849,001.03
  5. Step 5: Solve for x
    x = 9,781,849,001.03/117,703.94
  6. Step 6: Final answer
    x = 83,105.54

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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.