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Finding the Fourth Proportional to 168,684.64, 252,901.95 and 102,109.02

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Solution

The fourth proportional to 168,684.64, 252,901.95 and 102,109.02 is: 153,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,684.64 : 252,901.95 = 102,109.02 : x
  2. Step 2: Convert to fraction form
    168,684.64/252,901.95 = 102,109.02/x
  3. Step 3: Cross multiply
    168,684.64x = 252,901.95 × 102,109.02
  4. Step 4: Simplify right side
    168,684.64x = 25,823,570,270.59
  5. Step 5: Solve for x
    x = 25,823,570,270.59/168,684.64
  6. Step 6: Final answer
    x = 153,087.86

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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.