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Finding the Fourth Proportional to 77,659.29, 116,415.11 and 49,500.29

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Solution

The fourth proportional to 77,659.29, 116,415.11 and 49,500.29 is: 74,203.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,659.29 : 116,415.11 = 49,500.29 : x
  2. Step 2: Convert to fraction form
    77,659.29/116,415.11 = 49,500.29/x
  3. Step 3: Cross multiply
    77,659.29x = 116,415.11 × 49,500.29
  4. Step 4: Simplify right side
    77,659.29x = 5,762,582,120.17
  5. Step 5: Solve for x
    x = 5,762,582,120.17/77,659.29
  6. Step 6: Final answer
    x = 74,203.38

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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.