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Finding the Fourth Proportional to 219,523.89, 302,942.25 and 124,030.56

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Solution

The fourth proportional to 219,523.89, 302,942.25 and 124,030.56 is: 171,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,523.89 : 302,942.25 = 124,030.56 : x
  2. Step 2: Convert to fraction form
    219,523.89/302,942.25 = 124,030.56/x
  3. Step 3: Cross multiply
    219,523.89x = 302,942.25 × 124,030.56
  4. Step 4: Simplify right side
    219,523.89x = 37,574,096,915.16
  5. Step 5: Solve for x
    x = 37,574,096,915.16/219,523.89
  6. Step 6: Final answer
    x = 171,161.77

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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.