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Finding the Fourth Proportional to 198,855.06, 298,239.39 and 65,703.78

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Solution

The fourth proportional to 198,855.06, 298,239.39 and 65,703.78 is: 98,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,855.06 : 298,239.39 = 65,703.78 : x
  2. Step 2: Convert to fraction form
    198,855.06/298,239.39 = 65,703.78/x
  3. Step 3: Cross multiply
    198,855.06x = 298,239.39 × 65,703.78
  4. Step 4: Simplify right side
    198,855.06x = 19,595,455,267.89
  5. Step 5: Solve for x
    x = 19,595,455,267.89/198,855.06
  6. Step 6: Final answer
    x = 98,541.40

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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.