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Finding the Fourth Proportional to 188,549.10, 260,194.24 and 103,664.34

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Solution

The fourth proportional to 188,549.10, 260,194.24 and 103,664.34 is: 143,054.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,549.10 : 260,194.24 = 103,664.34 : x
  2. Step 2: Convert to fraction form
    188,549.10/260,194.24 = 103,664.34/x
  3. Step 3: Cross multiply
    188,549.10x = 260,194.24 × 103,664.34
  4. Step 4: Simplify right side
    188,549.10x = 26,972,864,161.40
  5. Step 5: Solve for x
    x = 26,972,864,161.40/188,549.10
  6. Step 6: Final answer
    x = 143,054.86

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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.