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Finding the Fourth Proportional to 128,393.66, 192,594.74 and 44,152.98

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Solution

The fourth proportional to 128,393.66, 192,594.74 and 44,152.98 is: 66,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,393.66 : 192,594.74 = 44,152.98 : x
  2. Step 2: Convert to fraction form
    128,393.66/192,594.74 = 44,152.98/x
  3. Step 3: Cross multiply
    128,393.66x = 192,594.74 × 44,152.98
  4. Step 4: Simplify right side
    128,393.66x = 8,503,631,703.33
  5. Step 5: Solve for x
    x = 8,503,631,703.33/128,393.66
  6. Step 6: Final answer
    x = 66,230.93

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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.