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Finding the Fourth Proportional to 111,622, 154,038.42 and 61,324.24

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Solution

The fourth proportional to 111,622, 154,038.42 and 61,324.24 is: 84,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,622 : 154,038.42 = 61,324.24 : x
  2. Step 2: Convert to fraction form
    111,622/154,038.42 = 61,324.24/x
  3. Step 3: Cross multiply
    111,622x = 154,038.42 × 61,324.24
  4. Step 4: Simplify right side
    111,622x = 9,446,289,037.30
  5. Step 5: Solve for x
    x = 9,446,289,037.30/111,622
  6. Step 6: Final answer
    x = 84,627.48

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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.