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Finding the Fourth Proportional to 351,808.82, 485,496.01 and 190,663.84

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Solution

The fourth proportional to 351,808.82, 485,496.01 and 190,663.84 is: 263,116.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,808.82 : 485,496.01 = 190,663.84 : x
  2. Step 2: Convert to fraction form
    351,808.82/485,496.01 = 190,663.84/x
  3. Step 3: Cross multiply
    351,808.82x = 485,496.01 × 190,663.84
  4. Step 4: Simplify right side
    351,808.82x = 92,566,534,416.48
  5. Step 5: Solve for x
    x = 92,566,534,416.48/351,808.82
  6. Step 6: Final answer
    x = 263,116.01

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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.