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Finding the Fourth Proportional to 197,999.91, 273,243.42 and 107,358.93

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Solution

The fourth proportional to 197,999.91, 273,243.42 and 107,358.93 is: 148,157.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,999.91 : 273,243.42 = 107,358.93 : x
  2. Step 2: Convert to fraction form
    197,999.91/273,243.42 = 107,358.93/x
  3. Step 3: Cross multiply
    197,999.91x = 273,243.42 × 107,358.93
  4. Step 4: Simplify right side
    197,999.91x = 29,335,121,200.74
  5. Step 5: Solve for x
    x = 29,335,121,200.74/197,999.91
  6. Step 6: Final answer
    x = 148,157.25

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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.