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Finding the Fourth Proportional to 192,661.08, 265,866.12 and 107,776.32

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Solution

The fourth proportional to 192,661.08, 265,866.12 and 107,776.32 is: 148,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,661.08 : 265,866.12 = 107,776.32 : x
  2. Step 2: Convert to fraction form
    192,661.08/265,866.12 = 107,776.32/x
  3. Step 3: Cross multiply
    192,661.08x = 265,866.12 × 107,776.32
  4. Step 4: Simplify right side
    192,661.08x = 28,654,072,026.28
  5. Step 5: Solve for x
    x = 28,654,072,026.28/192,661.08
  6. Step 6: Final answer
    x = 148,727.87

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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.