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Finding the Fourth Proportional to 68,483.81, 94,507.66 and 41,621.31

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Solution

The fourth proportional to 68,483.81, 94,507.66 and 41,621.31 is: 57,437.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,483.81 : 94,507.66 = 41,621.31 : x
  2. Step 2: Convert to fraction form
    68,483.81/94,507.66 = 41,621.31/x
  3. Step 3: Cross multiply
    68,483.81x = 94,507.66 × 41,621.31
  4. Step 4: Simplify right side
    68,483.81x = 3,933,532,666.26
  5. Step 5: Solve for x
    x = 3,933,532,666.26/68,483.81
  6. Step 6: Final answer
    x = 57,437.41

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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.