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Finding the Fourth Proportional to 117,490.59, 176,235.08 and 28,745.37

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Solution

The fourth proportional to 117,490.59, 176,235.08 and 28,745.37 is: 43,117.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,490.59 : 176,235.08 = 28,745.37 : x
  2. Step 2: Convert to fraction form
    117,490.59/176,235.08 = 28,745.37/x
  3. Step 3: Cross multiply
    117,490.59x = 176,235.08 × 28,745.37
  4. Step 4: Simplify right side
    117,490.59x = 5,065,942,437.85
  5. Step 5: Solve for x
    x = 5,065,942,437.85/117,490.59
  6. Step 6: Final answer
    x = 43,117.86

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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.