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Finding the Fourth Proportional to 132,858.60, 199,287.90 and 54,029.40

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Solution

The fourth proportional to 132,858.60, 199,287.90 and 54,029.40 is: 81,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,858.60 : 199,287.90 = 54,029.40 : x
  2. Step 2: Convert to fraction form
    132,858.60/199,287.90 = 54,029.40/x
  3. Step 3: Cross multiply
    132,858.60x = 199,287.90 × 54,029.40
  4. Step 4: Simplify right side
    132,858.60x = 10,767,405,664.26
  5. Step 5: Solve for x
    x = 10,767,405,664.26/132,858.60
  6. Step 6: Final answer
    x = 81,044.10

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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.