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Finding the Fourth Proportional to 118,042.80, 162,898.44 and 67,758

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Solution

The fourth proportional to 118,042.80, 162,898.44 and 67,758 is: 93,505.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,042.80 : 162,898.44 = 67,758 : x
  2. Step 2: Convert to fraction form
    118,042.80/162,898.44 = 67,758/x
  3. Step 3: Cross multiply
    118,042.80x = 162,898.44 × 67,758
  4. Step 4: Simplify right side
    118,042.80x = 11,037,672,497.52
  5. Step 5: Solve for x
    x = 11,037,672,497.52/118,042.80
  6. Step 6: Final answer
    x = 93,505.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.