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Finding the Fourth Proportional to 182,640.61, 251,880.85 and 114,663.92

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Solution

The fourth proportional to 182,640.61, 251,880.85 and 114,663.92 is: 158,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,640.61 : 251,880.85 = 114,663.92 : x
  2. Step 2: Convert to fraction form
    182,640.61/251,880.85 = 114,663.92/x
  3. Step 3: Cross multiply
    182,640.61x = 251,880.85 × 114,663.92
  4. Step 4: Simplify right side
    182,640.61x = 28,881,644,517.86
  5. Step 5: Solve for x
    x = 28,881,644,517.86/182,640.61
  6. Step 6: Final answer
    x = 158,133.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.