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Finding the Fourth Proportional to 355,755.26, 533,629.98 and 145,245.57

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Solution

The fourth proportional to 355,755.26, 533,629.98 and 145,245.57 is: 217,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,755.26 : 533,629.98 = 145,245.57 : x
  2. Step 2: Convert to fraction form
    355,755.26/533,629.98 = 145,245.57/x
  3. Step 3: Cross multiply
    355,755.26x = 533,629.98 × 145,245.57
  4. Step 4: Simplify right side
    355,755.26x = 77,507,390,614.19
  5. Step 5: Solve for x
    x = 77,507,390,614.19/355,755.26
  6. Step 6: Final answer
    x = 217,867.17

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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.