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Finding the Fourth Proportional to 116,955.56, 161,398.56 and 63,240.45

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Solution

The fourth proportional to 116,955.56, 161,398.56 and 63,240.45 is: 87,271.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,955.56 : 161,398.56 = 63,240.45 : x
  2. Step 2: Convert to fraction form
    116,955.56/161,398.56 = 63,240.45/x
  3. Step 3: Cross multiply
    116,955.56x = 161,398.56 × 63,240.45
  4. Step 4: Simplify right side
    116,955.56x = 10,206,917,563.75
  5. Step 5: Solve for x
    x = 10,206,917,563.75/116,955.56
  6. Step 6: Final answer
    x = 87,271.76

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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.