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Finding the Fourth Proportional to 65,878.24, 98,845.44 and 43,699.36

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Solution

The fourth proportional to 65,878.24, 98,845.44 and 43,699.36 is: 65,567.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,878.24 : 98,845.44 = 43,699.36 : x
  2. Step 2: Convert to fraction form
    65,878.24/98,845.44 = 43,699.36/x
  3. Step 3: Cross multiply
    65,878.24x = 98,845.44 × 43,699.36
  4. Step 4: Simplify right side
    65,878.24x = 4,319,482,466.92
  5. Step 5: Solve for x
    x = 4,319,482,466.92/65,878.24
  6. Step 6: Final answer
    x = 65,567.67

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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.