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Finding the Fourth Proportional to 188,418.26, 260,014.25 and 103,533.50

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Solution

The fourth proportional to 188,418.26, 260,014.25 and 103,533.50 is: 142,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,418.26 : 260,014.25 = 103,533.50 : x
  2. Step 2: Convert to fraction form
    188,418.26/260,014.25 = 103,533.50/x
  3. Step 3: Cross multiply
    188,418.26x = 260,014.25 × 103,533.50
  4. Step 4: Simplify right side
    188,418.26x = 26,920,186,261.24
  5. Step 5: Solve for x
    x = 26,920,186,261.24/188,418.26
  6. Step 6: Final answer
    x = 142,874.61

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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.