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Finding the Fourth Proportional to 172,426.82, 237,913.34 and 100,792.98

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Solution

The fourth proportional to 172,426.82, 237,913.34 and 100,792.98 is: 139,073.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,426.82 : 237,913.34 = 100,792.98 : x
  2. Step 2: Convert to fraction form
    172,426.82/237,913.34 = 100,792.98/x
  3. Step 3: Cross multiply
    172,426.82x = 237,913.34 × 100,792.98
  4. Step 4: Simplify right side
    172,426.82x = 23,979,994,520.35
  5. Step 5: Solve for x
    x = 23,979,994,520.35/172,426.82
  6. Step 6: Final answer
    x = 139,073.46

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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.