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Finding the Fourth Proportional to 216,928.25, 325,602.80 and 104,687.46

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Solution

The fourth proportional to 216,928.25, 325,602.80 and 104,687.46 is: 157,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,928.25 : 325,602.80 = 104,687.46 : x
  2. Step 2: Convert to fraction form
    216,928.25/325,602.80 = 104,687.46/x
  3. Step 3: Cross multiply
    216,928.25x = 325,602.80 × 104,687.46
  4. Step 4: Simplify right side
    216,928.25x = 34,086,530,100.89
  5. Step 5: Solve for x
    x = 34,086,530,100.89/216,928.25
  6. Step 6: Final answer
    x = 157,132.74

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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.