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Finding the Fourth Proportional to 122,004.35, 168,361.42 and 67,555.39

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Solution

The fourth proportional to 122,004.35, 168,361.42 and 67,555.39 is: 93,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,004.35 : 168,361.42 = 67,555.39 : x
  2. Step 2: Convert to fraction form
    122,004.35/168,361.42 = 67,555.39/x
  3. Step 3: Cross multiply
    122,004.35x = 168,361.42 × 67,555.39
  4. Step 4: Simplify right side
    122,004.35x = 11,373,721,051.28
  5. Step 5: Solve for x
    x = 11,373,721,051.28/122,004.35
  6. Step 6: Final answer
    x = 93,223.90

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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.