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Finding the Fourth Proportional to 122,213.94, 168,402.42 and 98,244.42

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Solution

The fourth proportional to 122,213.94, 168,402.42 and 98,244.42 is: 135,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,213.94 : 168,402.42 = 98,244.42 : x
  2. Step 2: Convert to fraction form
    122,213.94/168,402.42 = 98,244.42/x
  3. Step 3: Cross multiply
    122,213.94x = 168,402.42 × 98,244.42
  4. Step 4: Simplify right side
    122,213.94x = 16,544,598,079.50
  5. Step 5: Solve for x
    x = 16,544,598,079.50/122,213.94
  6. Step 6: Final answer
    x = 135,374.07

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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.