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Finding the Fourth Proportional to 338,407.48, 507,675.22 and 136,019.33

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Solution

The fourth proportional to 338,407.48, 507,675.22 and 136,019.33 is: 204,054.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,407.48 : 507,675.22 = 136,019.33 : x
  2. Step 2: Convert to fraction form
    338,407.48/507,675.22 = 136,019.33/x
  3. Step 3: Cross multiply
    338,407.48x = 507,675.22 × 136,019.33
  4. Step 4: Simplify right side
    338,407.48x = 69,053,645,928.14
  5. Step 5: Solve for x
    x = 69,053,645,928.14/338,407.48
  6. Step 6: Final answer
    x = 204,054.73

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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.