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Finding the Fourth Proportional to 352,536, 486,499.68 and 193,560

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Solution

The fourth proportional to 352,536, 486,499.68 and 193,560 is: 267,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,536 : 486,499.68 = 193,560 : x
  2. Step 2: Convert to fraction form
    352,536/486,499.68 = 193,560/x
  3. Step 3: Cross multiply
    352,536x = 486,499.68 × 193,560
  4. Step 4: Simplify right side
    352,536x = 94,166,878,060.80
  5. Step 5: Solve for x
    x = 94,166,878,060.80/352,536
  6. Step 6: Final answer
    x = 267,112.80

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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.