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Finding the Fourth Proportional to 351,263.70, 484,743.87 and 190,118.72

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Solution

The fourth proportional to 351,263.70, 484,743.87 and 190,118.72 is: 262,363.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,263.70 : 484,743.87 = 190,118.72 : x
  2. Step 2: Convert to fraction form
    351,263.70/484,743.87 = 190,118.72/x
  3. Step 3: Cross multiply
    351,263.70x = 484,743.87 × 190,118.72
  4. Step 4: Simplify right side
    351,263.70x = 92,158,881,668.53
  5. Step 5: Solve for x
    x = 92,158,881,668.53/351,263.70
  6. Step 6: Final answer
    x = 262,363.81

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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.