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Finding the Fourth Proportional to 118,363.50, 163,346.49 and 68,062.50

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Solution

The fourth proportional to 118,363.50, 163,346.49 and 68,062.50 is: 93,929.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,363.50 : 163,346.49 = 68,062.50 : x
  2. Step 2: Convert to fraction form
    118,363.50/163,346.49 = 68,062.50/x
  3. Step 3: Cross multiply
    118,363.50x = 163,346.49 × 68,062.50
  4. Step 4: Simplify right side
    118,363.50x = 11,117,770,475.63
  5. Step 5: Solve for x
    x = 11,117,770,475.63/118,363.50
  6. Step 6: Final answer
    x = 93,929.04

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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.