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Finding the Fourth Proportional to 122,185.18, 168,607.03 and 67,736.81

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Solution

The fourth proportional to 122,185.18, 168,607.03 and 67,736.81 is: 93,472.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,185.18 : 168,607.03 = 67,736.81 : x
  2. Step 2: Convert to fraction form
    122,185.18/168,607.03 = 67,736.81/x
  3. Step 3: Cross multiply
    122,185.18x = 168,607.03 × 67,736.81
  4. Step 4: Simplify right side
    122,185.18x = 11,420,902,355.77
  5. Step 5: Solve for x
    x = 11,420,902,355.77/122,185.18
  6. Step 6: Final answer
    x = 93,472.08

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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.