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Finding the Fourth Proportional to 119,317.96, 164,662.62 and 65,606.86

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Solution

The fourth proportional to 119,317.96, 164,662.62 and 65,606.86 is: 90,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,317.96 : 164,662.62 = 65,606.86 : x
  2. Step 2: Convert to fraction form
    119,317.96/164,662.62 = 65,606.86/x
  3. Step 3: Cross multiply
    119,317.96x = 164,662.62 × 65,606.86
  4. Step 4: Simplify right side
    119,317.96x = 10,802,997,457.57
  5. Step 5: Solve for x
    x = 10,802,997,457.57/119,317.96
  6. Step 6: Final answer
    x = 90,539.58

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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.