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Finding the Fourth Proportional to 545,369.49, 818,091.59 and 185,393.86

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Solution

The fourth proportional to 545,369.49, 818,091.59 and 185,393.86 is: 278,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,369.49 : 818,091.59 = 185,393.86 : x
  2. Step 2: Convert to fraction form
    545,369.49/818,091.59 = 185,393.86/x
  3. Step 3: Cross multiply
    545,369.49x = 818,091.59 × 185,393.86
  4. Step 4: Simplify right side
    545,369.49x = 151,669,154,731.44
  5. Step 5: Solve for x
    x = 151,669,154,731.44/545,369.49
  6. Step 6: Final answer
    x = 278,103.48

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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.