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Finding the Fourth Proportional to 65,984.70, 98,998.78 and 43,885.02

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Solution

The fourth proportional to 65,984.70, 98,998.78 and 43,885.02 is: 65,841.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,984.70 : 98,998.78 = 43,885.02 : x
  2. Step 2: Convert to fraction form
    65,984.70/98,998.78 = 43,885.02/x
  3. Step 3: Cross multiply
    65,984.70x = 98,998.78 × 43,885.02
  4. Step 4: Simplify right side
    65,984.70x = 4,344,563,440.28
  5. Step 5: Solve for x
    x = 4,344,563,440.28/65,984.70
  6. Step 6: Final answer
    x = 65,841.98

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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.