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Finding the Fourth Proportional to 338,889.02, 507,978.85 and 114,171.80

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Solution

The fourth proportional to 338,889.02, 507,978.85 and 114,171.80 is: 171,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,889.02 : 507,978.85 = 114,171.80 : x
  2. Step 2: Convert to fraction form
    338,889.02/507,978.85 = 114,171.80/x
  3. Step 3: Cross multiply
    338,889.02x = 507,978.85 × 114,171.80
  4. Step 4: Simplify right side
    338,889.02x = 57,996,860,650.95
  5. Step 5: Solve for x
    x = 57,996,860,650.95/338,889.02
  6. Step 6: Final answer
    x = 171,138.21

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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.