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Finding the Fourth Proportional to 117,621, 176,461.20 and 51,044.94

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Solution

The fourth proportional to 117,621, 176,461.20 and 51,044.94 is: 76,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,621 : 176,461.20 = 51,044.94 : x
  2. Step 2: Convert to fraction form
    117,621/176,461.20 = 51,044.94/x
  3. Step 3: Cross multiply
    117,621x = 176,461.20 × 51,044.94
  4. Step 4: Simplify right side
    117,621x = 9,007,451,366.33
  5. Step 5: Solve for x
    x = 9,007,451,366.33/117,621
  6. Step 6: Final answer
    x = 76,580.30

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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.