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Finding the Fourth Proportional to 349,388.86, 482,173.72 and 196,475.18

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Solution

The fourth proportional to 349,388.86, 482,173.72 and 196,475.18 is: 271,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,388.86 : 482,173.72 = 196,475.18 : x
  2. Step 2: Convert to fraction form
    349,388.86/482,173.72 = 196,475.18/x
  3. Step 3: Cross multiply
    349,388.86x = 482,173.72 × 196,475.18
  4. Step 4: Simplify right side
    349,388.86x = 94,735,168,428.27
  5. Step 5: Solve for x
    x = 94,735,168,428.27/349,388.86
  6. Step 6: Final answer
    x = 271,145.36

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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.