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Finding the Fourth Proportional to 358,818.94, 537,720.96 and 198,965.29

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Solution

The fourth proportional to 358,818.94, 537,720.96 and 198,965.29 is: 298,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,818.94 : 537,720.96 = 198,965.29 : x
  2. Step 2: Convert to fraction form
    358,818.94/537,720.96 = 198,965.29/x
  3. Step 3: Cross multiply
    358,818.94x = 537,720.96 × 198,965.29
  4. Step 4: Simplify right side
    358,818.94x = 106,987,806,745.48
  5. Step 5: Solve for x
    x = 106,987,806,745.48/358,818.94
  6. Step 6: Final answer
    x = 298,166.55

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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.