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Finding the Fourth Proportional to 353,229.81, 528,686.41 and 193,060.41

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Solution

The fourth proportional to 353,229.81, 528,686.41 and 193,060.41 is: 288,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,229.81 : 528,686.41 = 193,060.41 : x
  2. Step 2: Convert to fraction form
    353,229.81/528,686.41 = 193,060.41/x
  3. Step 3: Cross multiply
    353,229.81x = 528,686.41 × 193,060.41
  4. Step 4: Simplify right side
    353,229.81x = 102,068,415,076.03
  5. Step 5: Solve for x
    x = 102,068,415,076.03/353,229.81
  6. Step 6: Final answer
    x = 288,957.53

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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.