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Finding the Fourth Proportional to 351,147.84, 484,582.68 and 190,003.20

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Solution

The fourth proportional to 351,147.84, 484,582.68 and 190,003.20 is: 262,203.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,147.84 : 484,582.68 = 190,003.20 : x
  2. Step 2: Convert to fraction form
    351,147.84/484,582.68 = 190,003.20/x
  3. Step 3: Cross multiply
    351,147.84x = 484,582.68 × 190,003.20
  4. Step 4: Simplify right side
    351,147.84x = 92,072,259,864.58
  5. Step 5: Solve for x
    x = 92,072,259,864.58/351,147.84
  6. Step 6: Final answer
    x = 262,203.69

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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.