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Finding the Fourth Proportional to 118,238.92, 176,898.30 and 108,310.48

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Solution

The fourth proportional to 118,238.92, 176,898.30 and 108,310.48 is: 162,044.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,238.92 : 176,898.30 = 108,310.48 : x
  2. Step 2: Convert to fraction form
    118,238.92/176,898.30 = 108,310.48/x
  3. Step 3: Cross multiply
    118,238.92x = 176,898.30 × 108,310.48
  4. Step 4: Simplify right side
    118,238.92x = 19,159,939,784.18
  5. Step 5: Solve for x
    x = 19,159,939,784.18/118,238.92
  6. Step 6: Final answer
    x = 162,044.27

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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.