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Finding the Fourth Proportional to 192,078.78, 265,083.72 and 107,208.60

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Solution

The fourth proportional to 192,078.78, 265,083.72 and 107,208.60 is: 147,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,078.78 : 265,083.72 = 107,208.60 : x
  2. Step 2: Convert to fraction form
    192,078.78/265,083.72 = 107,208.60/x
  3. Step 3: Cross multiply
    192,078.78x = 265,083.72 × 107,208.60
  4. Step 4: Simplify right side
    192,078.78x = 28,419,254,503.99
  5. Step 5: Solve for x
    x = 28,419,254,503.99/192,078.78
  6. Step 6: Final answer
    x = 147,956.24

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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.