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Finding the Fourth Proportional to 483,676.80, 725,516.96 and 146,720.40

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Solution

The fourth proportional to 483,676.80, 725,516.96 and 146,720.40 is: 220,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,676.80 : 725,516.96 = 146,720.40 : x
  2. Step 2: Convert to fraction form
    483,676.80/725,516.96 = 146,720.40/x
  3. Step 3: Cross multiply
    483,676.80x = 725,516.96 × 146,720.40
  4. Step 4: Simplify right side
    483,676.80x = 106,448,137,844.38
  5. Step 5: Solve for x
    x = 106,448,137,844.38/483,676.80
  6. Step 6: Final answer
    x = 220,081.13

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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.