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Finding the Fourth Proportional to 336,643.31, 464,567.78 and 185,740.31

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Solution

The fourth proportional to 336,643.31, 464,567.78 and 185,740.31 is: 256,321.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,643.31 : 464,567.78 = 185,740.31 : x
  2. Step 2: Convert to fraction form
    336,643.31/464,567.78 = 185,740.31/x
  3. Step 3: Cross multiply
    336,643.31x = 464,567.78 × 185,740.31
  4. Step 4: Simplify right side
    336,643.31x = 86,288,965,098.98
  5. Step 5: Solve for x
    x = 86,288,965,098.98/336,643.31
  6. Step 6: Final answer
    x = 256,321.64

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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.