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Finding the Fourth Proportional to 116,974.47, 161,425.16 and 63,259.86

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Solution

The fourth proportional to 116,974.47, 161,425.16 and 63,259.86 is: 87,298.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,974.47 : 161,425.16 = 63,259.86 : x
  2. Step 2: Convert to fraction form
    116,974.47/161,425.16 = 63,259.86/x
  3. Step 3: Cross multiply
    116,974.47x = 161,425.16 × 63,259.86
  4. Step 4: Simplify right side
    116,974.47x = 10,211,733,022.08
  5. Step 5: Solve for x
    x = 10,211,733,022.08/116,974.47
  6. Step 6: Final answer
    x = 87,298.82

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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.