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Finding the Fourth Proportional to 192,888.63, 266,171.54 and 107,994.15

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Solution

The fourth proportional to 192,888.63, 266,171.54 and 107,994.15 is: 149,023.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,888.63 : 266,171.54 = 107,994.15 : x
  2. Step 2: Convert to fraction form
    192,888.63/266,171.54 = 107,994.15/x
  3. Step 3: Cross multiply
    192,888.63x = 266,171.54 × 107,994.15
  4. Step 4: Simplify right side
    192,888.63x = 28,744,968,676.52
  5. Step 5: Solve for x
    x = 28,744,968,676.52/192,888.63
  6. Step 6: Final answer
    x = 149,023.66

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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.