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Finding the Fourth Proportional to 353,781.66, 530,755.50 and 101,065.77

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Solution

The fourth proportional to 353,781.66, 530,755.50 and 101,065.77 is: 151,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,781.66 : 530,755.50 = 101,065.77 : x
  2. Step 2: Convert to fraction form
    353,781.66/530,755.50 = 101,065.77/x
  3. Step 3: Cross multiply
    353,781.66x = 530,755.50 × 101,065.77
  4. Step 4: Simplify right side
    353,781.66x = 53,641,213,289.24
  5. Step 5: Solve for x
    x = 53,641,213,289.24/353,781.66
  6. Step 6: Final answer
    x = 151,622.37

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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.