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Finding the Fourth Proportional to 122,764.01, 169,412.67 and 69,049.01

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Solution

The fourth proportional to 122,764.01, 169,412.67 and 69,049.01 is: 95,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,764.01 : 169,412.67 = 69,049.01 : x
  2. Step 2: Convert to fraction form
    122,764.01/169,412.67 = 69,049.01/x
  3. Step 3: Cross multiply
    122,764.01x = 169,412.67 × 69,049.01
  4. Step 4: Simplify right side
    122,764.01x = 11,697,776,297.89
  5. Step 5: Solve for x
    x = 11,697,776,297.89/122,764.01
  6. Step 6: Final answer
    x = 95,286.69

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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.