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Finding the Fourth Proportional to 419,068.02, 628,699.67 and 119,552.74

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Solution

The fourth proportional to 419,068.02, 628,699.67 and 119,552.74 is: 179,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,068.02 : 628,699.67 = 119,552.74 : x
  2. Step 2: Convert to fraction form
    419,068.02/628,699.67 = 119,552.74/x
  3. Step 3: Cross multiply
    419,068.02x = 628,699.67 × 119,552.74
  4. Step 4: Simplify right side
    419,068.02x = 75,162,768,185.60
  5. Step 5: Solve for x
    x = 75,162,768,185.60/419,068.02
  6. Step 6: Final answer
    x = 179,356.96

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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.