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Finding the Fourth Proportional to 192,767.72, 265,987.71 and 121,096.98

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Solution

The fourth proportional to 192,767.72, 265,987.71 and 121,096.98 is: 167,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,767.72 : 265,987.71 = 121,096.98 : x
  2. Step 2: Convert to fraction form
    192,767.72/265,987.71 = 121,096.98/x
  3. Step 3: Cross multiply
    192,767.72x = 265,987.71 × 121,096.98
  4. Step 4: Simplify right side
    192,767.72x = 32,210,308,398.12
  5. Step 5: Solve for x
    x = 32,210,308,398.12/192,767.72
  6. Step 6: Final answer
    x = 167,093.90

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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.