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Finding the Fourth Proportional to 295,940.64, 443,923.92 and 85,599.84

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Solution

The fourth proportional to 295,940.64, 443,923.92 and 85,599.84 is: 128,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,940.64 : 443,923.92 = 85,599.84 : x
  2. Step 2: Convert to fraction form
    295,940.64/443,923.92 = 85,599.84/x
  3. Step 3: Cross multiply
    295,940.64x = 443,923.92 × 85,599.84
  4. Step 4: Simplify right side
    295,940.64x = 37,999,816,524.17
  5. Step 5: Solve for x
    x = 37,999,816,524.17/295,940.64
  6. Step 6: Final answer
    x = 128,403.51

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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.