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Finding the Fourth Proportional to 352,333.44, 528,655.68 and 142,381.44

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Solution

The fourth proportional to 352,333.44, 528,655.68 and 142,381.44 is: 213,635.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,333.44 : 528,655.68 = 142,381.44 : x
  2. Step 2: Convert to fraction form
    352,333.44/528,655.68 = 142,381.44/x
  3. Step 3: Cross multiply
    352,333.44x = 528,655.68 × 142,381.44
  4. Step 4: Simplify right side
    352,333.44x = 75,270,756,982.58
  5. Step 5: Solve for x
    x = 75,270,756,982.58/352,333.44
  6. Step 6: Final answer
    x = 213,635.01

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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.