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Finding the Fourth Proportional to 338,273.15, 507,042.94 and 169,386.33

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Solution

The fourth proportional to 338,273.15, 507,042.94 and 169,386.33 is: 253,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,273.15 : 507,042.94 = 169,386.33 : x
  2. Step 2: Convert to fraction form
    338,273.15/507,042.94 = 169,386.33/x
  3. Step 3: Cross multiply
    338,273.15x = 507,042.94 × 169,386.33
  4. Step 4: Simplify right side
    338,273.15x = 85,886,142,759.01
  5. Step 5: Solve for x
    x = 85,886,142,759.01/338,273.15
  6. Step 6: Final answer
    x = 253,895.83

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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.