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Finding the Fourth Proportional to 102,793.55, 141,858.26 and 57,473.43

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Solution

The fourth proportional to 102,793.55, 141,858.26 and 57,473.43 is: 79,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,793.55 : 141,858.26 = 57,473.43 : x
  2. Step 2: Convert to fraction form
    102,793.55/141,858.26 = 57,473.43/x
  3. Step 3: Cross multiply
    102,793.55x = 141,858.26 × 57,473.43
  4. Step 4: Simplify right side
    102,793.55x = 8,153,080,488.66
  5. Step 5: Solve for x
    x = 8,153,080,488.66/102,793.55
  6. Step 6: Final answer
    x = 79,315.10

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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.