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Finding the Fourth Proportional to 78,903.23, 108,884.72 and 43,093.38

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Solution

The fourth proportional to 78,903.23, 108,884.72 and 43,093.38 is: 59,467.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,903.23 : 108,884.72 = 43,093.38 : x
  2. Step 2: Convert to fraction form
    78,903.23/108,884.72 = 43,093.38/x
  3. Step 3: Cross multiply
    78,903.23x = 108,884.72 × 43,093.38
  4. Step 4: Simplify right side
    78,903.23x = 4,692,210,399.69
  5. Step 5: Solve for x
    x = 4,692,210,399.69/78,903.23
  6. Step 6: Final answer
    x = 59,467.92

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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.