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Finding the Fourth Proportional to 188,851.08, 260,616.24 and 103,969.56

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Solution

The fourth proportional to 188,851.08, 260,616.24 and 103,969.56 is: 143,478.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,851.08 : 260,616.24 = 103,969.56 : x
  2. Step 2: Convert to fraction form
    188,851.08/260,616.24 = 103,969.56/x
  3. Step 3: Cross multiply
    188,851.08x = 260,616.24 × 103,969.56
  4. Step 4: Simplify right side
    188,851.08x = 27,096,155,801.65
  5. Step 5: Solve for x
    x = 27,096,155,801.65/188,851.08
  6. Step 6: Final answer
    x = 143,478.96

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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.