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Finding the Fourth Proportional to 122,392.35, 168,892.57 and 67,947.44

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Solution

The fourth proportional to 122,392.35, 168,892.57 and 67,947.44 is: 93,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,392.35 : 168,892.57 = 67,947.44 : x
  2. Step 2: Convert to fraction form
    122,392.35/168,892.57 = 67,947.44/x
  3. Step 3: Cross multiply
    122,392.35x = 168,892.57 × 67,947.44
  4. Step 4: Simplify right side
    122,392.35x = 11,475,817,766.52
  5. Step 5: Solve for x
    x = 11,475,817,766.52/122,392.35
  6. Step 6: Final answer
    x = 93,762.54

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1.5x scale

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.