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Finding the Fourth Proportional to 326,814.48, 490,111.49 and 124,362.53

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Solution

The fourth proportional to 326,814.48, 490,111.49 and 124,362.53 is: 186,501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,814.48 : 490,111.49 = 124,362.53 : x
  2. Step 2: Convert to fraction form
    326,814.48/490,111.49 = 124,362.53/x
  3. Step 3: Cross multiply
    326,814.48x = 490,111.49 × 124,362.53
  4. Step 4: Simplify right side
    326,814.48x = 60,951,504,878.47
  5. Step 5: Solve for x
    x = 60,951,504,878.47/326,814.48
  6. Step 6: Final answer
    x = 186,501.85

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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.