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Finding the Fourth Proportional to 56,749.98, 85,112.01 and 16,760.40

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Solution

The fourth proportional to 56,749.98, 85,112.01 and 16,760.40 is: 25,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,749.98 : 85,112.01 = 16,760.40 : x
  2. Step 2: Convert to fraction form
    56,749.98/85,112.01 = 16,760.40/x
  3. Step 3: Cross multiply
    56,749.98x = 85,112.01 × 16,760.40
  4. Step 4: Simplify right side
    56,749.98x = 1,426,511,332.40
  5. Step 5: Solve for x
    x = 1,426,511,332.40/56,749.98
  6. Step 6: Final answer
    x = 25,136.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.