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Finding the Fourth Proportional to 379,604.26, 569,405.94 and 155,070.22

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Solution

The fourth proportional to 379,604.26, 569,405.94 and 155,070.22 is: 232,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,604.26 : 569,405.94 = 155,070.22 : x
  2. Step 2: Convert to fraction form
    379,604.26/569,405.94 = 155,070.22/x
  3. Step 3: Cross multiply
    379,604.26x = 569,405.94 × 155,070.22
  4. Step 4: Simplify right side
    379,604.26x = 88,297,904,385.11
  5. Step 5: Solve for x
    x = 88,297,904,385.11/379,604.26
  6. Step 6: Final answer
    x = 232,605.15

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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.