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Finding the Fourth Proportional to 326,866.73, 490,019.25 and 113,606.93

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Solution

The fourth proportional to 326,866.73, 490,019.25 and 113,606.93 is: 170,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,866.73 : 490,019.25 = 113,606.93 : x
  2. Step 2: Convert to fraction form
    326,866.73/490,019.25 = 113,606.93/x
  3. Step 3: Cross multiply
    326,866.73x = 490,019.25 × 113,606.93
  4. Step 4: Simplify right side
    326,866.73x = 55,669,584,284.48
  5. Step 5: Solve for x
    x = 55,669,584,284.48/326,866.73
  6. Step 6: Final answer
    x = 170,312.79

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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.