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Finding the Fourth Proportional to 116,991.52, 175,513.20 and 54,628

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Solution

The fourth proportional to 116,991.52, 175,513.20 and 54,628 is: 81,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,991.52 : 175,513.20 = 54,628 : x
  2. Step 2: Convert to fraction form
    116,991.52/175,513.20 = 54,628/x
  3. Step 3: Cross multiply
    116,991.52x = 175,513.20 × 54,628
  4. Step 4: Simplify right side
    116,991.52x = 9,587,935,089.60
  5. Step 5: Solve for x
    x = 9,587,935,089.60/116,991.52
  6. Step 6: Final answer
    x = 81,954.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.