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Finding the Fourth Proportional to 198,340.63, 297,520.51 and 65,217.94

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Solution

The fourth proportional to 198,340.63, 297,520.51 and 65,217.94 is: 97,830.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,340.63 : 297,520.51 = 65,217.94 : x
  2. Step 2: Convert to fraction form
    198,340.63/297,520.51 = 65,217.94/x
  3. Step 3: Cross multiply
    198,340.63x = 297,520.51 × 65,217.94
  4. Step 4: Simplify right side
    198,340.63x = 19,403,674,769.95
  5. Step 5: Solve for x
    x = 19,403,674,769.95/198,340.63
  6. Step 6: Final answer
    x = 97,830.06

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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.