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Finding the Fourth Proportional to 172,267.35, 237,793.89 and 100,670.64

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Solution

The fourth proportional to 172,267.35, 237,793.89 and 100,670.64 is: 138,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,267.35 : 237,793.89 = 100,670.64 : x
  2. Step 2: Convert to fraction form
    172,267.35/237,793.89 = 100,670.64/x
  3. Step 3: Cross multiply
    172,267.35x = 237,793.89 × 100,670.64
  4. Step 4: Simplify right side
    172,267.35x = 23,938,863,094.39
  5. Step 5: Solve for x
    x = 23,938,863,094.39/172,267.35
  6. Step 6: Final answer
    x = 138,963.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.