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Finding the Fourth Proportional to 117,368.91, 161,968.19 and 63,654.03

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Solution

The fourth proportional to 117,368.91, 161,968.19 and 63,654.03 is: 87,842.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,368.91 : 161,968.19 = 63,654.03 : x
  2. Step 2: Convert to fraction form
    117,368.91/161,968.19 = 63,654.03/x
  3. Step 3: Cross multiply
    117,368.91x = 161,968.19 × 63,654.03
  4. Step 4: Simplify right side
    117,368.91x = 10,309,927,707.04
  5. Step 5: Solve for x
    x = 10,309,927,707.04/117,368.91
  6. Step 6: Final answer
    x = 87,842.07

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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.