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Finding the Fourth Proportional to 57,316.70, 79,106.46 and 33,443.31

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Solution

The fourth proportional to 57,316.70, 79,106.46 and 33,443.31 is: 46,157.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,316.70 : 79,106.46 = 33,443.31 : x
  2. Step 2: Convert to fraction form
    57,316.70/79,106.46 = 33,443.31/x
  3. Step 3: Cross multiply
    57,316.70x = 79,106.46 × 33,443.31
  4. Step 4: Simplify right side
    57,316.70x = 2,645,582,036.02
  5. Step 5: Solve for x
    x = 2,645,582,036.02/57,316.70
  6. Step 6: Final answer
    x = 46,157.27

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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.