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Finding the Fourth Proportional to 122,270.72, 168,733.56 and 68,555.73

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Solution

The fourth proportional to 122,270.72, 168,733.56 and 68,555.73 is: 94,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,270.72 : 168,733.56 = 68,555.73 : x
  2. Step 2: Convert to fraction form
    122,270.72/168,733.56 = 68,555.73/x
  3. Step 3: Cross multiply
    122,270.72x = 168,733.56 × 68,555.73
  4. Step 4: Simplify right side
    122,270.72x = 11,567,653,271.13
  5. Step 5: Solve for x
    x = 11,567,653,271.13/122,270.72
  6. Step 6: Final answer
    x = 94,606.90

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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.