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Finding the Fourth Proportional to 329,637.63, 494,468.61 and 92,986.65

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Solution

The fourth proportional to 329,637.63, 494,468.61 and 92,986.65 is: 139,483.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,637.63 : 494,468.61 = 92,986.65 : x
  2. Step 2: Convert to fraction form
    329,637.63/494,468.61 = 92,986.65/x
  3. Step 3: Cross multiply
    329,637.63x = 494,468.61 × 92,986.65
  4. Step 4: Simplify right side
    329,637.63x = 45,978,979,574.06
  5. Step 5: Solve for x
    x = 45,978,979,574.06/329,637.63
  6. Step 6: Final answer
    x = 139,483.41

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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.