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Finding the Fourth Proportional to 116,913.65, 161,302.59 and 71,544.33

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Solution

The fourth proportional to 116,913.65, 161,302.59 and 71,544.33 is: 98,707.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,913.65 : 161,302.59 = 71,544.33 : x
  2. Step 2: Convert to fraction form
    116,913.65/161,302.59 = 71,544.33/x
  3. Step 3: Cross multiply
    116,913.65x = 161,302.59 × 71,544.33
  4. Step 4: Simplify right side
    116,913.65x = 11,540,285,728.81
  5. Step 5: Solve for x
    x = 11,540,285,728.81/116,913.65
  6. Step 6: Final answer
    x = 98,707.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.