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Finding the Fourth Proportional to 567,783.02, 851,640.93 and 212,767.34

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Solution

The fourth proportional to 567,783.02, 851,640.93 and 212,767.34 is: 319,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,783.02 : 851,640.93 = 212,767.34 : x
  2. Step 2: Convert to fraction form
    567,783.02/851,640.93 = 212,767.34/x
  3. Step 3: Cross multiply
    567,783.02x = 851,640.93 × 212,767.34
  4. Step 4: Simplify right side
    567,783.02x = 181,201,375,311.23
  5. Step 5: Solve for x
    x = 181,201,375,311.23/567,783.02
  6. Step 6: Final answer
    x = 319,138.42

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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.