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Finding the Fourth Proportional to 188,433.54, 260,043.21 and 103,552.83

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Solution

The fourth proportional to 188,433.54, 260,043.21 and 103,552.83 is: 142,905.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,433.54 : 260,043.21 = 103,552.83 : x
  2. Step 2: Convert to fraction form
    188,433.54/260,043.21 = 103,552.83/x
  3. Step 3: Cross multiply
    188,433.54x = 260,043.21 × 103,552.83
  4. Step 4: Simplify right side
    188,433.54x = 26,928,210,317.78
  5. Step 5: Solve for x
    x = 26,928,210,317.78/188,433.54
  6. Step 6: Final answer
    x = 142,905.61

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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.