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Finding the Fourth Proportional to 72,114.40, 99,496.12 and 41,893.84

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Solution

The fourth proportional to 72,114.40, 99,496.12 and 41,893.84 is: 57,800.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114.40 : 99,496.12 = 41,893.84 : x
  2. Step 2: Convert to fraction form
    72,114.40/99,496.12 = 41,893.84/x
  3. Step 3: Cross multiply
    72,114.40x = 99,496.12 × 41,893.84
  4. Step 4: Simplify right side
    72,114.40x = 4,168,274,531.90
  5. Step 5: Solve for x
    x = 4,168,274,531.90/72,114.40
  6. Step 6: Final answer
    x = 57,800.86

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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.