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Finding the Fourth Proportional to 104,546.57, 144,269.91 and 56,798.69

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Solution

The fourth proportional to 104,546.57, 144,269.91 and 56,798.69 is: 78,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,546.57 : 144,269.91 = 56,798.69 : x
  2. Step 2: Convert to fraction form
    104,546.57/144,269.91 = 56,798.69/x
  3. Step 3: Cross multiply
    104,546.57x = 144,269.91 × 56,798.69
  4. Step 4: Simplify right side
    104,546.57x = 8,194,341,173.07
  5. Step 5: Solve for x
    x = 8,194,341,173.07/104,546.57
  6. Step 6: Final answer
    x = 78,379.82

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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.