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Finding the Fourth Proportional to 350,622.72, 526,072.32 and 129,024

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Solution

The fourth proportional to 350,622.72, 526,072.32 and 129,024 is: 193,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,622.72 : 526,072.32 = 129,024 : x
  2. Step 2: Convert to fraction form
    350,622.72/526,072.32 = 129,024/x
  3. Step 3: Cross multiply
    350,622.72x = 526,072.32 × 129,024
  4. Step 4: Simplify right side
    350,622.72x = 67,875,955,015.68
  5. Step 5: Solve for x
    x = 67,875,955,015.68/350,622.72
  6. Step 6: Final answer
    x = 193,586.87

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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.