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Finding the Fourth Proportional to 344,080.47, 474,815.66 and 191,129.21

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Solution

The fourth proportional to 344,080.47, 474,815.66 and 191,129.21 is: 263,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,080.47 : 474,815.66 = 191,129.21 : x
  2. Step 2: Convert to fraction form
    344,080.47/474,815.66 = 191,129.21/x
  3. Step 3: Cross multiply
    344,080.47x = 474,815.66 × 191,129.21
  4. Step 4: Simplify right side
    344,080.47x = 90,751,140,442.26
  5. Step 5: Solve for x
    x = 90,751,140,442.26/344,080.47
  6. Step 6: Final answer
    x = 263,749.75

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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.