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Finding the Fourth Proportional to 367,052.80, 550,579.20 and 130,419.40

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Solution

The fourth proportional to 367,052.80, 550,579.20 and 130,419.40 is: 195,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,052.80 : 550,579.20 = 130,419.40 : x
  2. Step 2: Convert to fraction form
    367,052.80/550,579.20 = 130,419.40/x
  3. Step 3: Cross multiply
    367,052.80x = 550,579.20 × 130,419.40
  4. Step 4: Simplify right side
    367,052.80x = 71,806,208,916.48
  5. Step 5: Solve for x
    x = 71,806,208,916.48/367,052.80
  6. Step 6: Final answer
    x = 195,629.10

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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.