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Finding the Fourth Proportional to 173,243.40, 239,092.74 and 105,245.52

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Solution

The fourth proportional to 173,243.40, 239,092.74 and 105,245.52 is: 145,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,243.40 : 239,092.74 = 105,245.52 : x
  2. Step 2: Convert to fraction form
    173,243.40/239,092.74 = 105,245.52/x
  3. Step 3: Cross multiply
    173,243.40x = 239,092.74 × 105,245.52
  4. Step 4: Simplify right side
    173,243.40x = 25,163,439,749.52
  5. Step 5: Solve for x
    x = 25,163,439,749.52/173,243.40
  6. Step 6: Final answer
    x = 145,249.05

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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.