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Finding the Fourth Proportional to 117,889.64, 176,832.84 and 51,328.34

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Solution

The fourth proportional to 117,889.64, 176,832.84 and 51,328.34 is: 76,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,889.64 : 176,832.84 = 51,328.34 : x
  2. Step 2: Convert to fraction form
    117,889.64/176,832.84 = 51,328.34/x
  3. Step 3: Cross multiply
    117,889.64x = 176,832.84 × 51,328.34
  4. Step 4: Simplify right side
    117,889.64x = 9,076,536,134.69
  5. Step 5: Solve for x
    x = 9,076,536,134.69/117,889.64
  6. Step 6: Final answer
    x = 76,991.80

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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.