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Finding the Fourth Proportional to 116,008.60, 173,624.10 and 81,016.60

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Solution

The fourth proportional to 116,008.60, 173,624.10 and 81,016.60 is: 121,253.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,008.60 : 173,624.10 = 81,016.60 : x
  2. Step 2: Convert to fraction form
    116,008.60/173,624.10 = 81,016.60/x
  3. Step 3: Cross multiply
    116,008.60x = 173,624.10 × 81,016.60
  4. Step 4: Simplify right side
    116,008.60x = 14,066,434,260.06
  5. Step 5: Solve for x
    x = 14,066,434,260.06/116,008.60
  6. Step 6: Final answer
    x = 121,253.37

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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.