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Finding the Fourth Proportional to 98,897.45, 148,346.15 and 65,682.36

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Solution

The fourth proportional to 98,897.45, 148,346.15 and 65,682.36 is: 98,523.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,897.45 : 148,346.15 = 65,682.36 : x
  2. Step 2: Convert to fraction form
    98,897.45/148,346.15 = 65,682.36/x
  3. Step 3: Cross multiply
    98,897.45x = 148,346.15 × 65,682.36
  4. Step 4: Simplify right side
    98,897.45x = 9,743,724,900.50
  5. Step 5: Solve for x
    x = 9,743,724,900.50/98,897.45
  6. Step 6: Final answer
    x = 98,523.53

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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.