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Finding the Fourth Proportional to 118,951.50, 164,167.65 and 68,650.50

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Solution

The fourth proportional to 118,951.50, 164,167.65 and 68,650.50 is: 94,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,951.50 : 164,167.65 = 68,650.50 : x
  2. Step 2: Convert to fraction form
    118,951.50/164,167.65 = 68,650.50/x
  3. Step 3: Cross multiply
    118,951.50x = 164,167.65 × 68,650.50
  4. Step 4: Simplify right side
    118,951.50x = 11,270,191,256.33
  5. Step 5: Solve for x
    x = 11,270,191,256.33/118,951.50
  6. Step 6: Final answer
    x = 94,746.10

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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.