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Finding the Fourth Proportional to 144,785.66, 199,736.60 and 91,100.26

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Solution

The fourth proportional to 144,785.66, 199,736.60 and 91,100.26 is: 125,675.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,785.66 : 199,736.60 = 91,100.26 : x
  2. Step 2: Convert to fraction form
    144,785.66/199,736.60 = 91,100.26/x
  3. Step 3: Cross multiply
    144,785.66x = 199,736.60 × 91,100.26
  4. Step 4: Simplify right side
    144,785.66x = 18,196,056,191.52
  5. Step 5: Solve for x
    x = 18,196,056,191.52/144,785.66
  6. Step 6: Final answer
    x = 125,675.82

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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.