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Finding the Fourth Proportional to 338,587.02, 507,901.22 and 113,928.59

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Solution

The fourth proportional to 338,587.02, 507,901.22 and 113,928.59 is: 170,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,587.02 : 507,901.22 = 113,928.59 : x
  2. Step 2: Convert to fraction form
    338,587.02/507,901.22 = 113,928.59/x
  3. Step 3: Cross multiply
    338,587.02x = 507,901.22 × 113,928.59
  4. Step 4: Simplify right side
    338,587.02x = 57,864,469,853.88
  5. Step 5: Solve for x
    x = 57,864,469,853.88/338,587.02
  6. Step 6: Final answer
    x = 170,899.85

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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.