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Finding the Fourth Proportional to 119,652.58, 165,112.75 and 65,937.59

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Solution

The fourth proportional to 119,652.58, 165,112.75 and 65,937.59 is: 90,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,652.58 : 165,112.75 = 65,937.59 : x
  2. Step 2: Convert to fraction form
    119,652.58/165,112.75 = 65,937.59/x
  3. Step 3: Cross multiply
    119,652.58x = 165,112.75 × 65,937.59
  4. Step 4: Simplify right side
    119,652.58x = 10,887,136,813.27
  5. Step 5: Solve for x
    x = 10,887,136,813.27/119,652.58
  6. Step 6: Final answer
    x = 90,989.57

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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.