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Finding the Fourth Proportional to 118,959.18, 178,460.64 and 96,967.68

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Solution

The fourth proportional to 118,959.18, 178,460.64 and 96,967.68 is: 145,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,959.18 : 178,460.64 = 96,967.68 : x
  2. Step 2: Convert to fraction form
    118,959.18/178,460.64 = 96,967.68/x
  3. Step 3: Cross multiply
    118,959.18x = 178,460.64 × 96,967.68
  4. Step 4: Simplify right side
    118,959.18x = 17,304,914,232.12
  5. Step 5: Solve for x
    x = 17,304,914,232.12/118,959.18
  6. Step 6: Final answer
    x = 145,469.35

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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.