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Finding the Fourth Proportional to 216,847.49, 325,301.49 and 98,548.61

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Solution

The fourth proportional to 216,847.49, 325,301.49 and 98,548.61 is: 147,836.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,847.49 : 325,301.49 = 98,548.61 : x
  2. Step 2: Convert to fraction form
    216,847.49/325,301.49 = 98,548.61/x
  3. Step 3: Cross multiply
    216,847.49x = 325,301.49 × 98,548.61
  4. Step 4: Simplify right side
    216,847.49x = 32,058,009,670.43
  5. Step 5: Solve for x
    x = 32,058,009,670.43/216,847.49
  6. Step 6: Final answer
    x = 147,836.66

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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.