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Finding the Fourth Proportional to 203,813.70, 306,048.60 and 153,950.10

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Solution

The fourth proportional to 203,813.70, 306,048.60 and 153,950.10 is: 231,172.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,813.70 : 306,048.60 = 153,950.10 : x
  2. Step 2: Convert to fraction form
    203,813.70/306,048.60 = 153,950.10/x
  3. Step 3: Cross multiply
    203,813.70x = 306,048.60 × 153,950.10
  4. Step 4: Simplify right side
    203,813.70x = 47,116,212,574.86
  5. Step 5: Solve for x
    x = 47,116,212,574.86/203,813.70
  6. Step 6: Final answer
    x = 231,172.94

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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.