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Finding the Fourth Proportional to 323,539.42, 485,310.33 and 98,898.98

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Solution

The fourth proportional to 323,539.42, 485,310.33 and 98,898.98 is: 148,348.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,539.42 : 485,310.33 = 98,898.98 : x
  2. Step 2: Convert to fraction form
    323,539.42/485,310.33 = 98,898.98/x
  3. Step 3: Cross multiply
    323,539.42x = 485,310.33 × 98,898.98
  4. Step 4: Simplify right side
    323,539.42x = 47,996,696,125.97
  5. Step 5: Solve for x
    x = 47,996,696,125.97/323,539.42
  6. Step 6: Final answer
    x = 148,348.84

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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.