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Finding the Fourth Proportional to 129,903.68, 194,867.94 and 36,409.16

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Solution

The fourth proportional to 129,903.68, 194,867.94 and 36,409.16 is: 54,617.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,903.68 : 194,867.94 = 36,409.16 : x
  2. Step 2: Convert to fraction form
    129,903.68/194,867.94 = 36,409.16/x
  3. Step 3: Cross multiply
    129,903.68x = 194,867.94 × 36,409.16
  4. Step 4: Simplify right side
    129,903.68x = 7,094,978,006.33
  5. Step 5: Solve for x
    x = 7,094,978,006.33/129,903.68
  6. Step 6: Final answer
    x = 54,617.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.