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Finding the Fourth Proportional to 122,366.50, 168,864.75 and 68,651.48

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Solution

The fourth proportional to 122,366.50, 168,864.75 and 68,651.48 is: 94,738.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,366.50 : 168,864.75 = 68,651.48 : x
  2. Step 2: Convert to fraction form
    122,366.50/168,864.75 = 68,651.48/x
  3. Step 3: Cross multiply
    122,366.50x = 168,864.75 × 68,651.48
  4. Step 4: Simplify right side
    122,366.50x = 11,592,815,429.49
  5. Step 5: Solve for x
    x = 11,592,815,429.49/122,366.50
  6. Step 6: Final answer
    x = 94,738.48

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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.