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Finding the Fourth Proportional to 98,007.40, 146,792.40 and 75,748.60

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Solution

The fourth proportional to 98,007.40, 146,792.40 and 75,748.60 is: 113,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,007.40 : 146,792.40 = 75,748.60 : x
  2. Step 2: Convert to fraction form
    98,007.40/146,792.40 = 75,748.60/x
  3. Step 3: Cross multiply
    98,007.40x = 146,792.40 × 75,748.60
  4. Step 4: Simplify right side
    98,007.40x = 11,119,318,790.64
  5. Step 5: Solve for x
    x = 11,119,318,790.64/98,007.40
  6. Step 6: Final answer
    x = 113,453.87

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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.