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Finding the Fourth Proportional to 338,633.59, 507,978.02 and 170,067.22

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Solution

The fourth proportional to 338,633.59, 507,978.02 and 170,067.22 is: 255,114.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,633.59 : 507,978.02 = 170,067.22 : x
  2. Step 2: Convert to fraction form
    338,633.59/507,978.02 = 170,067.22/x
  3. Step 3: Cross multiply
    338,633.59x = 507,978.02 × 170,067.22
  4. Step 4: Simplify right side
    338,633.59x = 86,390,409,682.50
  5. Step 5: Solve for x
    x = 86,390,409,682.50/338,633.59
  6. Step 6: Final answer
    x = 255,114.71

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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.