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Finding the Fourth Proportional to 343,603, 474,172.41 and 192,700

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Solution

The fourth proportional to 343,603, 474,172.41 and 192,700 is: 265,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,603 : 474,172.41 = 192,700 : x
  2. Step 2: Convert to fraction form
    343,603/474,172.41 = 192,700/x
  3. Step 3: Cross multiply
    343,603x = 474,172.41 × 192,700
  4. Step 4: Simplify right side
    343,603x = 91,373,023,407
  5. Step 5: Solve for x
    x = 91,373,023,407/343,603
  6. Step 6: Final answer
    x = 265,926.15

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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.