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Finding the Fourth Proportional to 343,654.22, 474,245.40 and 190,693.01

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Solution

The fourth proportional to 343,654.22, 474,245.40 and 190,693.01 is: 263,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,654.22 : 474,245.40 = 190,693.01 : x
  2. Step 2: Convert to fraction form
    343,654.22/474,245.40 = 190,693.01/x
  3. Step 3: Cross multiply
    343,654.22x = 474,245.40 × 190,693.01
  4. Step 4: Simplify right side
    343,654.22x = 90,435,282,804.65
  5. Step 5: Solve for x
    x = 90,435,282,804.65/343,654.22
  6. Step 6: Final answer
    x = 263,157.78

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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.