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Finding the Fourth Proportional to 128,094.53, 192,007.82 and 43,826.37

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Solution

The fourth proportional to 128,094.53, 192,007.82 and 43,826.37 is: 65,693.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,094.53 : 192,007.82 = 43,826.37 : x
  2. Step 2: Convert to fraction form
    128,094.53/192,007.82 = 43,826.37/x
  3. Step 3: Cross multiply
    128,094.53x = 192,007.82 × 43,826.37
  4. Step 4: Simplify right side
    128,094.53x = 8,415,005,543.08
  5. Step 5: Solve for x
    x = 8,415,005,543.08/128,094.53
  6. Step 6: Final answer
    x = 65,693.72

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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.