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Finding the Fourth Proportional to 307,043.92, 460,627.96 and 129,551.36

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Solution

The fourth proportional to 307,043.92, 460,627.96 and 129,551.36 is: 194,353.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,043.92 : 460,627.96 = 129,551.36 : x
  2. Step 2: Convert to fraction form
    307,043.92/460,627.96 = 129,551.36/x
  3. Step 3: Cross multiply
    307,043.92x = 460,627.96 × 129,551.36
  4. Step 4: Simplify right side
    307,043.92x = 59,674,978,672.03
  5. Step 5: Solve for x
    x = 59,674,978,672.03/307,043.92
  6. Step 6: Final answer
    x = 194,353.23

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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.