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Finding the Fourth Proportional to 198,818.48, 298,248.44 and 63,848.45

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Solution

The fourth proportional to 198,818.48, 298,248.44 and 63,848.45 is: 95,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,818.48 : 298,248.44 = 63,848.45 : x
  2. Step 2: Convert to fraction form
    198,818.48/298,248.44 = 63,848.45/x
  3. Step 3: Cross multiply
    198,818.48x = 298,248.44 × 63,848.45
  4. Step 4: Simplify right side
    198,818.48x = 19,042,701,035.30
  5. Step 5: Solve for x
    x = 19,042,701,035.30/198,818.48
  6. Step 6: Final answer
    x = 95,779.33

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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.