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Finding the Fourth Proportional to 72,793.84, 100,430.40 and 44,122.72

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Solution

The fourth proportional to 72,793.84, 100,430.40 and 44,122.72 is: 60,874.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,793.84 : 100,430.40 = 44,122.72 : x
  2. Step 2: Convert to fraction form
    72,793.84/100,430.40 = 44,122.72/x
  3. Step 3: Cross multiply
    72,793.84x = 100,430.40 × 44,122.72
  4. Step 4: Simplify right side
    72,793.84x = 4,431,262,418.69
  5. Step 5: Solve for x
    x = 4,431,262,418.69/72,793.84
  6. Step 6: Final answer
    x = 60,874.14

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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.