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Finding the Fourth Proportional to 413,373.46, 620,059.96 and 129,088.37

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Solution

The fourth proportional to 413,373.46, 620,059.96 and 129,088.37 is: 193,632.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,373.46 : 620,059.96 = 129,088.37 : x
  2. Step 2: Convert to fraction form
    413,373.46/620,059.96 = 129,088.37/x
  3. Step 3: Cross multiply
    413,373.46x = 620,059.96 × 129,088.37
  4. Step 4: Simplify right side
    413,373.46x = 80,042,529,172.96
  5. Step 5: Solve for x
    x = 80,042,529,172.96/413,373.46
  6. Step 6: Final answer
    x = 193,632.48

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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.