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Finding the Fourth Proportional to 114,489.80, 157,892.56 and 71,473.26

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Solution

The fourth proportional to 114,489.80, 157,892.56 and 71,473.26 is: 98,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,489.80 : 157,892.56 = 71,473.26 : x
  2. Step 2: Convert to fraction form
    114,489.80/157,892.56 = 71,473.26/x
  3. Step 3: Cross multiply
    114,489.80x = 157,892.56 × 71,473.26
  4. Step 4: Simplify right side
    114,489.80x = 11,285,095,814.26
  5. Step 5: Solve for x
    x = 11,285,095,814.26/114,489.80
  6. Step 6: Final answer
    x = 98,568.57

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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.