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Finding the Fourth Proportional to 219,722.86, 303,225.70 and 124,223.86

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Solution

The fourth proportional to 219,722.86, 303,225.70 and 124,223.86 is: 171,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,722.86 : 303,225.70 = 124,223.86 : x
  2. Step 2: Convert to fraction form
    219,722.86/303,225.70 = 124,223.86/x
  3. Step 3: Cross multiply
    219,722.86x = 303,225.70 × 124,223.86
  4. Step 4: Simplify right side
    219,722.86x = 37,667,866,905.20
  5. Step 5: Solve for x
    x = 37,667,866,905.20/219,722.86
  6. Step 6: Final answer
    x = 171,433.54

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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.