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Finding the Fourth Proportional to 351,562.74, 485,156.37 and 190,417.74

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Solution

The fourth proportional to 351,562.74, 485,156.37 and 190,417.74 is: 262,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,562.74 : 485,156.37 = 190,417.74 : x
  2. Step 2: Convert to fraction form
    351,562.74/485,156.37 = 190,417.74/x
  3. Step 3: Cross multiply
    351,562.74x = 485,156.37 × 190,417.74
  4. Step 4: Simplify right side
    351,562.74x = 92,382,379,522.00
  5. Step 5: Solve for x
    x = 92,382,379,522.00/351,562.74
  6. Step 6: Final answer
    x = 262,776.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.