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Finding the Fourth Proportional to 117,703.26, 176,554.94 and 47,631.78

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Solution

The fourth proportional to 117,703.26, 176,554.94 and 47,631.78 is: 71,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.26 : 176,554.94 = 47,631.78 : x
  2. Step 2: Convert to fraction form
    117,703.26/176,554.94 = 47,631.78/x
  3. Step 3: Cross multiply
    117,703.26x = 176,554.94 × 47,631.78
  4. Step 4: Simplify right side
    117,703.26x = 8,409,625,821.83
  5. Step 5: Solve for x
    x = 8,409,625,821.83/117,703.26
  6. Step 6: Final answer
    x = 71,447.69

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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.