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Finding the Fourth Proportional to 151,202.70, 208,647.50 and 87,544.53

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Solution

The fourth proportional to 151,202.70, 208,647.50 and 87,544.53 is: 120,804.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,202.70 : 208,647.50 = 87,544.53 : x
  2. Step 2: Convert to fraction form
    151,202.70/208,647.50 = 87,544.53/x
  3. Step 3: Cross multiply
    151,202.70x = 208,647.50 × 87,544.53
  4. Step 4: Simplify right side
    151,202.70x = 18,265,946,885.45
  5. Step 5: Solve for x
    x = 18,265,946,885.45/151,202.70
  6. Step 6: Final answer
    x = 120,804.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.