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Finding the Fourth Proportional to 334,532.63, 501,794.58 and 81,815.31

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Solution

The fourth proportional to 334,532.63, 501,794.58 and 81,815.31 is: 122,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,532.63 : 501,794.58 = 81,815.31 : x
  2. Step 2: Convert to fraction form
    334,532.63/501,794.58 = 81,815.31/x
  3. Step 3: Cross multiply
    334,532.63x = 501,794.58 × 81,815.31
  4. Step 4: Simplify right side
    334,532.63x = 41,054,479,119.02
  5. Step 5: Solve for x
    x = 41,054,479,119.02/334,532.63
  6. Step 6: Final answer
    x = 122,721.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.