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Finding the Fourth Proportional to 77,392.28, 116,068.92 and 29,991.08

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Solution

The fourth proportional to 77,392.28, 116,068.92 and 29,991.08 is: 44,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,392.28 : 116,068.92 = 29,991.08 : x
  2. Step 2: Convert to fraction form
    77,392.28/116,068.92 = 29,991.08/x
  3. Step 3: Cross multiply
    77,392.28x = 116,068.92 × 29,991.08
  4. Step 4: Simplify right side
    77,392.28x = 3,481,032,265.23
  5. Step 5: Solve for x
    x = 3,481,032,265.23/77,392.28
  6. Step 6: Final answer
    x = 44,979.06

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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.