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Finding the Fourth Proportional to 379,211.91, 568,851.89 and 98,731.59

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Solution

The fourth proportional to 379,211.91, 568,851.89 and 98,731.59 is: 148,106.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,211.91 : 568,851.89 = 98,731.59 : x
  2. Step 2: Convert to fraction form
    379,211.91/568,851.89 = 98,731.59/x
  3. Step 3: Cross multiply
    379,211.91x = 568,851.89 × 98,731.59
  4. Step 4: Simplify right side
    379,211.91x = 56,163,651,080.55
  5. Step 5: Solve for x
    x = 56,163,651,080.55/379,211.91
  6. Step 6: Final answer
    x = 148,106.24

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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.