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Finding the Fourth Proportional to 118,954.52, 178,653.58 and 104,728.04

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Solution

The fourth proportional to 118,954.52, 178,653.58 and 104,728.04 is: 157,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,954.52 : 178,653.58 = 104,728.04 : x
  2. Step 2: Convert to fraction form
    118,954.52/178,653.58 = 104,728.04/x
  3. Step 3: Cross multiply
    118,954.52x = 178,653.58 × 104,728.04
  4. Step 4: Simplify right side
    118,954.52x = 18,710,039,272.38
  5. Step 5: Solve for x
    x = 18,710,039,272.38/118,954.52
  6. Step 6: Final answer
    x = 157,287.33

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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.