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Finding the Fourth Proportional to 57,858.86, 79,702.43 and 49,333.20

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Solution

The fourth proportional to 57,858.86, 79,702.43 and 49,333.20 is: 67,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,858.86 : 79,702.43 = 49,333.20 : x
  2. Step 2: Convert to fraction form
    57,858.86/79,702.43 = 49,333.20/x
  3. Step 3: Cross multiply
    57,858.86x = 79,702.43 × 49,333.20
  4. Step 4: Simplify right side
    57,858.86x = 3,931,975,673.01
  5. Step 5: Solve for x
    x = 3,931,975,673.01/57,858.86
  6. Step 6: Final answer
    x = 67,958.06

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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.