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Finding the Fourth Proportional to 188,992.09, 260,764.26 and 107,302.57

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Solution

The fourth proportional to 188,992.09, 260,764.26 and 107,302.57 is: 148,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,992.09 : 260,764.26 = 107,302.57 : x
  2. Step 2: Convert to fraction form
    188,992.09/260,764.26 = 107,302.57/x
  3. Step 3: Cross multiply
    188,992.09x = 260,764.26 × 107,302.57
  4. Step 4: Simplify right side
    188,992.09x = 27,980,674,725.64
  5. Step 5: Solve for x
    x = 27,980,674,725.64/188,992.09
  6. Step 6: Final answer
    x = 148,052.10

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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.