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Finding the Fourth Proportional to 137,010.79, 205,493.77 and 48,243.43

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Solution

The fourth proportional to 137,010.79, 205,493.77 and 48,243.43 is: 72,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,010.79 : 205,493.77 = 48,243.43 : x
  2. Step 2: Convert to fraction form
    137,010.79/205,493.77 = 48,243.43/x
  3. Step 3: Cross multiply
    137,010.79x = 205,493.77 × 48,243.43
  4. Step 4: Simplify right side
    137,010.79x = 9,913,723,674.09
  5. Step 5: Solve for x
    x = 9,913,723,674.09/137,010.79
  6. Step 6: Final answer
    x = 72,357.25

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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.