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Finding the Fourth Proportional to 379,433.27, 569,224.64 and 113,187.89

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Solution

The fourth proportional to 379,433.27, 569,224.64 and 113,187.89 is: 169,804.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,433.27 : 569,224.64 = 113,187.89 : x
  2. Step 2: Convert to fraction form
    379,433.27/569,224.64 = 113,187.89/x
  3. Step 3: Cross multiply
    379,433.27x = 569,224.64 × 113,187.89
  4. Step 4: Simplify right side
    379,433.27x = 64,429,337,643.64
  5. Step 5: Solve for x
    x = 64,429,337,643.64/379,433.27
  6. Step 6: Final answer
    x = 169,804.13

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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.