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Finding the Fourth Proportional to 210,942, 316,464.84 and 63,198

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Solution

The fourth proportional to 210,942, 316,464.84 and 63,198 is: 94,812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,942 : 316,464.84 = 63,198 : x
  2. Step 2: Convert to fraction form
    210,942/316,464.84 = 63,198/x
  3. Step 3: Cross multiply
    210,942x = 316,464.84 × 63,198
  4. Step 4: Simplify right side
    210,942x = 19,999,944,958.32
  5. Step 5: Solve for x
    x = 19,999,944,958.32/210,942
  6. Step 6: Final answer
    x = 94,812.53

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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.