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Finding the Fourth Proportional to 351,587.81, 485,190.96 and 190,442.47

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Solution

The fourth proportional to 351,587.81, 485,190.96 and 190,442.47 is: 262,810.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,587.81 : 485,190.96 = 190,442.47 : x
  2. Step 2: Convert to fraction form
    351,587.81/485,190.96 = 190,442.47/x
  3. Step 3: Cross multiply
    351,587.81x = 485,190.96 × 190,442.47
  4. Step 4: Simplify right side
    351,587.81x = 92,400,964,844.07
  5. Step 5: Solve for x
    x = 92,400,964,844.07/351,587.81
  6. Step 6: Final answer
    x = 262,810.49

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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.