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Finding the Fourth Proportional to 116,784.76, 161,163.15 and 66,483.76

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Solution

The fourth proportional to 116,784.76, 161,163.15 and 66,483.76 is: 91,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,784.76 : 161,163.15 = 66,483.76 : x
  2. Step 2: Convert to fraction form
    116,784.76/161,163.15 = 66,483.76/x
  3. Step 3: Cross multiply
    116,784.76x = 161,163.15 × 66,483.76
  4. Step 4: Simplify right side
    116,784.76x = 10,714,732,185.44
  5. Step 5: Solve for x
    x = 10,714,732,185.44/116,784.76
  6. Step 6: Final answer
    x = 91,747.69

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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.