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Finding the Fourth Proportional to 54,928.54, 75,800.88 and 31,059.88

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Solution

The fourth proportional to 54,928.54, 75,800.88 and 31,059.88 is: 42,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,928.54 : 75,800.88 = 31,059.88 : x
  2. Step 2: Convert to fraction form
    54,928.54/75,800.88 = 31,059.88/x
  3. Step 3: Cross multiply
    54,928.54x = 75,800.88 × 31,059.88
  4. Step 4: Simplify right side
    54,928.54x = 2,354,366,236.69
  5. Step 5: Solve for x
    x = 2,354,366,236.69/54,928.54
  6. Step 6: Final answer
    x = 42,862.35

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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.