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Finding the Fourth Proportional to 98,890.67, 148,336.01 and 65,675.61

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Solution

The fourth proportional to 98,890.67, 148,336.01 and 65,675.61 is: 98,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,890.67 : 148,336.01 = 65,675.61 : x
  2. Step 2: Convert to fraction form
    98,890.67/148,336.01 = 65,675.61/x
  3. Step 3: Cross multiply
    98,890.67x = 148,336.01 × 65,675.61
  4. Step 4: Simplify right side
    98,890.67x = 9,742,057,859.62
  5. Step 5: Solve for x
    x = 9,742,057,859.62/98,890.67
  6. Step 6: Final answer
    x = 98,513.42

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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.