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Finding the Fourth Proportional to 57,359.60, 79,142.40 and 33,472.64

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Solution

The fourth proportional to 57,359.60, 79,142.40 and 33,472.64 is: 46,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,359.60 : 79,142.40 = 33,472.64 : x
  2. Step 2: Convert to fraction form
    57,359.60/79,142.40 = 33,472.64/x
  3. Step 3: Cross multiply
    57,359.60x = 79,142.40 × 33,472.64
  4. Step 4: Simplify right side
    57,359.60x = 2,649,105,063.94
  5. Step 5: Solve for x
    x = 2,649,105,063.94/57,359.60
  6. Step 6: Final answer
    x = 46,184.16

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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.