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Finding the Fourth Proportional to 192,672.70, 265,884.08 and 105,457.37

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Solution

The fourth proportional to 192,672.70, 265,884.08 and 105,457.37 is: 145,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,672.70 : 265,884.08 = 105,457.37 : x
  2. Step 2: Convert to fraction form
    192,672.70/265,884.08 = 105,457.37/x
  3. Step 3: Cross multiply
    192,672.70x = 265,884.08 × 105,457.37
  4. Step 4: Simplify right side
    192,672.70x = 28,039,433,944.96
  5. Step 5: Solve for x
    x = 28,039,433,944.96/192,672.70
  6. Step 6: Final answer
    x = 145,528.84

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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.