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Finding the Fourth Proportional to 117,586.17, 176,382.60 and 28,839.60

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Solution

The fourth proportional to 117,586.17, 176,382.60 and 28,839.60 is: 43,260.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,586.17 : 176,382.60 = 28,839.60 : x
  2. Step 2: Convert to fraction form
    117,586.17/176,382.60 = 28,839.60/x
  3. Step 3: Cross multiply
    117,586.17x = 176,382.60 × 28,839.60
  4. Step 4: Simplify right side
    117,586.17x = 5,086,803,630.96
  5. Step 5: Solve for x
    x = 5,086,803,630.96/117,586.17
  6. Step 6: Final answer
    x = 43,260.22

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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.