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Finding the Fourth Proportional to 116,889.95, 161,307.75 and 63,174.80

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Solution

The fourth proportional to 116,889.95, 161,307.75 and 63,174.80 is: 87,181.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,889.95 : 161,307.75 = 63,174.80 : x
  2. Step 2: Convert to fraction form
    116,889.95/161,307.75 = 63,174.80/x
  3. Step 3: Cross multiply
    116,889.95x = 161,307.75 × 63,174.80
  4. Step 4: Simplify right side
    116,889.95x = 10,190,585,484.87
  5. Step 5: Solve for x
    x = 10,190,585,484.87/116,889.95
  6. Step 6: Final answer
    x = 87,181.02

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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.