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Finding the Fourth Proportional to 483,676.30, 725,516.21 and 146,719.90

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Solution

The fourth proportional to 483,676.30, 725,516.21 and 146,719.90 is: 220,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,676.30 : 725,516.21 = 146,719.90 : x
  2. Step 2: Convert to fraction form
    483,676.30/725,516.21 = 146,719.90/x
  3. Step 3: Cross multiply
    483,676.30x = 725,516.21 × 146,719.90
  4. Step 4: Simplify right side
    483,676.30x = 106,447,665,779.58
  5. Step 5: Solve for x
    x = 106,447,665,779.58/483,676.30
  6. Step 6: Final answer
    x = 220,080.38

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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.