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Finding the Fourth Proportional to 98,669.86, 148,004.48 and 35,489.88

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Solution

The fourth proportional to 98,669.86, 148,004.48 and 35,489.88 is: 53,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,669.86 : 148,004.48 = 35,489.88 : x
  2. Step 2: Convert to fraction form
    98,669.86/148,004.48 = 35,489.88/x
  3. Step 3: Cross multiply
    98,669.86x = 148,004.48 × 35,489.88
  4. Step 4: Simplify right side
    98,669.86x = 5,252,661,323.39
  5. Step 5: Solve for x
    x = 5,252,661,323.39/98,669.86
  6. Step 6: Final answer
    x = 53,234.71

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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.