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Finding the Fourth Proportional to 118,908.88, 178,361.52 and 28,952.32

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Solution

The fourth proportional to 118,908.88, 178,361.52 and 28,952.32 is: 43,428.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,908.88 : 178,361.52 = 28,952.32 : x
  2. Step 2: Convert to fraction form
    118,908.88/178,361.52 = 28,952.32/x
  3. Step 3: Cross multiply
    118,908.88x = 178,361.52 × 28,952.32
  4. Step 4: Simplify right side
    118,908.88x = 5,163,979,802.73
  5. Step 5: Solve for x
    x = 5,163,979,802.73/118,908.88
  6. Step 6: Final answer
    x = 43,428.04

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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.