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Finding the Fourth Proportional to 124,295.82, 186,311.61 and 84,754.86

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Solution

The fourth proportional to 124,295.82, 186,311.61 and 84,754.86 is: 127,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,295.82 : 186,311.61 = 84,754.86 : x
  2. Step 2: Convert to fraction form
    124,295.82/186,311.61 = 84,754.86/x
  3. Step 3: Cross multiply
    124,295.82x = 186,311.61 × 84,754.86
  4. Step 4: Simplify right side
    124,295.82x = 15,790,814,421.92
  5. Step 5: Solve for x
    x = 15,790,814,421.92/124,295.82
  6. Step 6: Final answer
    x = 127,042.20

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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.