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Finding the Fourth Proportional to 122,291.56, 168,764.10 and 73,886.77

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Solution

The fourth proportional to 122,291.56, 168,764.10 and 73,886.77 is: 101,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,291.56 : 168,764.10 = 73,886.77 : x
  2. Step 2: Convert to fraction form
    122,291.56/168,764.10 = 73,886.77/x
  3. Step 3: Cross multiply
    122,291.56x = 168,764.10 × 73,886.77
  4. Step 4: Simplify right side
    122,291.56x = 12,469,434,590.45
  5. Step 5: Solve for x
    x = 12,469,434,590.45/122,291.56
  6. Step 6: Final answer
    x = 101,964.80

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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.