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Finding the Fourth Proportional to 136,111.60, 203,778.60 and 122,114.80

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Solution

The fourth proportional to 136,111.60, 203,778.60 and 122,114.80 is: 182,823.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,111.60 : 203,778.60 = 122,114.80 : x
  2. Step 2: Convert to fraction form
    136,111.60/203,778.60 = 122,114.80/x
  3. Step 3: Cross multiply
    136,111.60x = 203,778.60 × 122,114.80
  4. Step 4: Simplify right side
    136,111.60x = 24,884,382,983.28
  5. Step 5: Solve for x
    x = 24,884,382,983.28/136,111.60
  6. Step 6: Final answer
    x = 182,823.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.