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Finding the Fourth Proportional to 219,718.38, 303,219.53 and 124,219.38

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Solution

The fourth proportional to 219,718.38, 303,219.53 and 124,219.38 is: 171,427.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,718.38 : 303,219.53 = 124,219.38 : x
  2. Step 2: Convert to fraction form
    219,718.38/303,219.53 = 124,219.38/x
  3. Step 3: Cross multiply
    219,718.38x = 303,219.53 × 124,219.38
  4. Step 4: Simplify right side
    219,718.38x = 37,665,743,701.02
  5. Step 5: Solve for x
    x = 37,665,743,701.02/219,718.38
  6. Step 6: Final answer
    x = 171,427.37

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1.5x scale

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.