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Finding the Fourth Proportional to 122,792.42, 169,451.85 and 69,077.42

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Solution

The fourth proportional to 122,792.42, 169,451.85 and 69,077.42 is: 95,325.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,792.42 : 169,451.85 = 69,077.42 : x
  2. Step 2: Convert to fraction form
    122,792.42/169,451.85 = 69,077.42/x
  3. Step 3: Cross multiply
    122,792.42x = 169,451.85 × 69,077.42
  4. Step 4: Simplify right side
    122,792.42x = 11,705,296,612.23
  5. Step 5: Solve for x
    x = 11,705,296,612.23/122,792.42
  6. Step 6: Final answer
    x = 95,325.89

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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.