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Finding the Fourth Proportional to 198,953.34, 298,430.04 and 65,797.86

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Solution

The fourth proportional to 198,953.34, 298,430.04 and 65,797.86 is: 98,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,953.34 : 298,430.04 = 65,797.86 : x
  2. Step 2: Convert to fraction form
    198,953.34/298,430.04 = 65,797.86/x
  3. Step 3: Cross multiply
    198,953.34x = 298,430.04 × 65,797.86
  4. Step 4: Simplify right side
    198,953.34x = 19,636,057,991.71
  5. Step 5: Solve for x
    x = 19,636,057,991.71/198,953.34
  6. Step 6: Final answer
    x = 98,696.80

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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.