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Finding the Fourth Proportional to 116,649.96, 174,694.64 and 66,578.25

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Solution

The fourth proportional to 116,649.96, 174,694.64 and 66,578.25 is: 99,707.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,649.96 : 174,694.64 = 66,578.25 : x
  2. Step 2: Convert to fraction form
    116,649.96/174,694.64 = 66,578.25/x
  3. Step 3: Cross multiply
    116,649.96x = 174,694.64 × 66,578.25
  4. Step 4: Simplify right side
    116,649.96x = 11,630,863,082.69
  5. Step 5: Solve for x
    x = 11,630,863,082.69/116,649.96
  6. Step 6: Final answer
    x = 99,707.39

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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.