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Finding the Fourth Proportional to 104,679.94, 144,402.24 and 72,793.48

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Solution

The fourth proportional to 104,679.94, 144,402.24 and 72,793.48 is: 100,416.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,679.94 : 144,402.24 = 72,793.48 : x
  2. Step 2: Convert to fraction form
    104,679.94/144,402.24 = 72,793.48/x
  3. Step 3: Cross multiply
    104,679.94x = 144,402.24 × 72,793.48
  4. Step 4: Simplify right side
    104,679.94x = 10,511,541,569.40
  5. Step 5: Solve for x
    x = 10,511,541,569.40/104,679.94
  6. Step 6: Final answer
    x = 100,416.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.