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Finding the Fourth Proportional to 351,807.04, 485,495.43 and 190,662.08

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Solution

The fourth proportional to 351,807.04, 485,495.43 and 190,662.08 is: 263,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,807.04 : 485,495.43 = 190,662.08 : x
  2. Step 2: Convert to fraction form
    351,807.04/485,495.43 = 190,662.08/x
  3. Step 3: Cross multiply
    351,807.04x = 485,495.43 × 190,662.08
  4. Step 4: Simplify right side
    351,807.04x = 92,565,566,086.82
  5. Step 5: Solve for x
    x = 92,565,566,086.82/351,807.04
  6. Step 6: Final answer
    x = 263,114.60

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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.