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Finding the Fourth Proportional to 119,703.52, 165,183.44 and 65,985.76

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Solution

The fourth proportional to 119,703.52, 165,183.44 and 65,985.76 is: 91,056.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,703.52 : 165,183.44 = 65,985.76 : x
  2. Step 2: Convert to fraction form
    119,703.52/165,183.44 = 65,985.76/x
  3. Step 3: Cross multiply
    119,703.52x = 165,183.44 × 65,985.76
  4. Step 4: Simplify right side
    119,703.52x = 10,899,754,827.81
  5. Step 5: Solve for x
    x = 10,899,754,827.81/119,703.52
  6. Step 6: Final answer
    x = 91,056.26

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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.