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Finding the Fourth Proportional to 490,231.55, 735,347.90 and 153,273.98

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Solution

The fourth proportional to 490,231.55, 735,347.90 and 153,273.98 is: 229,911.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,231.55 : 735,347.90 = 153,273.98 : x
  2. Step 2: Convert to fraction form
    490,231.55/735,347.90 = 153,273.98/x
  3. Step 3: Cross multiply
    490,231.55x = 735,347.90 × 153,273.98
  4. Step 4: Simplify right side
    490,231.55x = 112,709,694,874.53
  5. Step 5: Solve for x
    x = 112,709,694,874.53/490,231.55
  6. Step 6: Final answer
    x = 229,911.14

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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.