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Finding the Fourth Proportional to 198,339.57, 297,509.36 and 58,098.20

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Solution

The fourth proportional to 198,339.57, 297,509.36 and 58,098.20 is: 87,147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,339.57 : 297,509.36 = 58,098.20 : x
  2. Step 2: Convert to fraction form
    198,339.57/297,509.36 = 58,098.20/x
  3. Step 3: Cross multiply
    198,339.57x = 297,509.36 × 58,098.20
  4. Step 4: Simplify right side
    198,339.57x = 17,284,756,521.11
  5. Step 5: Solve for x
    x = 17,284,756,521.11/198,339.57
  6. Step 6: Final answer
    x = 87,147.29

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1.5x scale

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.