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Finding the Fourth Proportional to 118,774.34, 163,862.97 and 67,789.90

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Solution

The fourth proportional to 118,774.34, 163,862.97 and 67,789.90 is: 93,524.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,774.34 : 163,862.97 = 67,789.90 : x
  2. Step 2: Convert to fraction form
    118,774.34/163,862.97 = 67,789.90/x
  3. Step 3: Cross multiply
    118,774.34x = 163,862.97 × 67,789.90
  4. Step 4: Simplify right side
    118,774.34x = 11,108,254,350.00
  5. Step 5: Solve for x
    x = 11,108,254,350.00/118,774.34
  6. Step 6: Final answer
    x = 93,524.03

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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.