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Finding the Fourth Proportional to 117,385.71, 175,576.06 and 108,876.91

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Solution

The fourth proportional to 117,385.71, 175,576.06 and 108,876.91 is: 162,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,385.71 : 175,576.06 = 108,876.91 : x
  2. Step 2: Convert to fraction form
    117,385.71/175,576.06 = 108,876.91/x
  3. Step 3: Cross multiply
    117,385.71x = 175,576.06 × 108,876.91
  4. Step 4: Simplify right side
    117,385.71x = 19,116,178,296.70
  5. Step 5: Solve for x
    x = 19,116,178,296.70/117,385.71
  6. Step 6: Final answer
    x = 162,849.28

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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.