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Finding the Fourth Proportional to 57,981.28, 80,052.54 and 44,528.40

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Solution

The fourth proportional to 57,981.28, 80,052.54 and 44,528.40 is: 61,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,981.28 : 80,052.54 = 44,528.40 : x
  2. Step 2: Convert to fraction form
    57,981.28/80,052.54 = 44,528.40/x
  3. Step 3: Cross multiply
    57,981.28x = 80,052.54 × 44,528.40
  4. Step 4: Simplify right side
    57,981.28x = 3,564,611,522.14
  5. Step 5: Solve for x
    x = 3,564,611,522.14/57,981.28
  6. Step 6: Final answer
    x = 61,478.66

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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.