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Finding the Fourth Proportional to 219,912.48, 303,526.64 and 133,899.88

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Solution

The fourth proportional to 219,912.48, 303,526.64 and 133,899.88 is: 184,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,912.48 : 303,526.64 = 133,899.88 : x
  2. Step 2: Convert to fraction form
    219,912.48/303,526.64 = 133,899.88/x
  3. Step 3: Cross multiply
    219,912.48x = 303,526.64 × 133,899.88
  4. Step 4: Simplify right side
    219,912.48x = 40,642,180,672.80
  5. Step 5: Solve for x
    x = 40,642,180,672.80/219,912.48
  6. Step 6: Final answer
    x = 184,810.71

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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.