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Finding the Fourth Proportional to 192,502.89, 265,655.66 and 107,619.93

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Solution

The fourth proportional to 192,502.89, 265,655.66 and 107,619.93 is: 148,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,502.89 : 265,655.66 = 107,619.93 : x
  2. Step 2: Convert to fraction form
    192,502.89/265,655.66 = 107,619.93/x
  3. Step 3: Cross multiply
    192,502.89x = 265,655.66 × 107,619.93
  4. Step 4: Simplify right side
    192,502.89x = 28,589,842,995.20
  5. Step 5: Solve for x
    x = 28,589,842,995.20/192,502.89
  6. Step 6: Final answer
    x = 148,516.44

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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.