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Finding the Fourth Proportional to 98,624.58, 147,741.99 and 65,243.67

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Solution

The fourth proportional to 98,624.58, 147,741.99 and 65,243.67 is: 97,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,624.58 : 147,741.99 = 65,243.67 : x
  2. Step 2: Convert to fraction form
    98,624.58/147,741.99 = 65,243.67/x
  3. Step 3: Cross multiply
    98,624.58x = 147,741.99 × 65,243.67
  4. Step 4: Simplify right side
    98,624.58x = 9,639,229,640.70
  5. Step 5: Solve for x
    x = 9,639,229,640.70/98,624.58
  6. Step 6: Final answer
    x = 97,736.58

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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.