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Finding the Fourth Proportional to 116,842.56, 161,242.80 and 63,127.56

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Solution

The fourth proportional to 116,842.56, 161,242.80 and 63,127.56 is: 87,116.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,842.56 : 161,242.80 = 63,127.56 : x
  2. Step 2: Convert to fraction form
    116,842.56/161,242.80 = 63,127.56/x
  3. Step 3: Cross multiply
    116,842.56x = 161,242.80 × 63,127.56
  4. Step 4: Simplify right side
    116,842.56x = 10,178,864,531.57
  5. Step 5: Solve for x
    x = 10,178,864,531.57/116,842.56
  6. Step 6: Final answer
    x = 87,116.07

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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.