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Finding the Fourth Proportional to 188,551.70, 260,164.02 and 105,768.32

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Solution

The fourth proportional to 188,551.70, 260,164.02 and 105,768.32 is: 145,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,551.70 : 260,164.02 = 105,768.32 : x
  2. Step 2: Convert to fraction form
    188,551.70/260,164.02 = 105,768.32/x
  3. Step 3: Cross multiply
    188,551.70x = 260,164.02 × 105,768.32
  4. Step 4: Simplify right side
    188,551.70x = 27,517,111,319.85
  5. Step 5: Solve for x
    x = 27,517,111,319.85/188,551.70
  6. Step 6: Final answer
    x = 145,939.34

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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.