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Finding the Fourth Proportional to 490,363.97, 735,544.87 and 130,534.90

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Solution

The fourth proportional to 490,363.97, 735,544.87 and 130,534.90 is: 195,802.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,363.97 : 735,544.87 = 130,534.90 : x
  2. Step 2: Convert to fraction form
    490,363.97/735,544.87 = 130,534.90/x
  3. Step 3: Cross multiply
    490,363.97x = 735,544.87 × 130,534.90
  4. Step 4: Simplify right side
    490,363.97x = 96,014,273,885.76
  5. Step 5: Solve for x
    x = 96,014,273,885.76/490,363.97
  6. Step 6: Final answer
    x = 195,802.06

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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.