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Finding the Fourth Proportional to 220,297.95, 303,868.85 and 151,354.53

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Solution

The fourth proportional to 220,297.95, 303,868.85 and 151,354.53 is: 208,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,297.95 : 303,868.85 = 151,354.53 : x
  2. Step 2: Convert to fraction form
    220,297.95/303,868.85 = 151,354.53/x
  3. Step 3: Cross multiply
    220,297.95x = 303,868.85 × 151,354.53
  4. Step 4: Simplify right side
    220,297.95x = 45,991,926,216.62
  5. Step 5: Solve for x
    x = 45,991,926,216.62/220,297.95
  6. Step 6: Final answer
    x = 208,771.47

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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.