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Finding the Fourth Proportional to 92,516.70, 127,676.14 and 56,699.79

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Solution

The fourth proportional to 92,516.70, 127,676.14 and 56,699.79 is: 78,247.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,516.70 : 127,676.14 = 56,699.79 : x
  2. Step 2: Convert to fraction form
    92,516.70/127,676.14 = 56,699.79/x
  3. Step 3: Cross multiply
    92,516.70x = 127,676.14 × 56,699.79
  4. Step 4: Simplify right side
    92,516.70x = 7,239,210,326.01
  5. Step 5: Solve for x
    x = 7,239,210,326.01/92,516.70
  6. Step 6: Final answer
    x = 78,247.61

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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.