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Finding the Fourth Proportional to 95,464.60, 142,905.30 and 74,469.40

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Solution

The fourth proportional to 95,464.60, 142,905.30 and 74,469.40 is: 111,476.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,464.60 : 142,905.30 = 74,469.40 : x
  2. Step 2: Convert to fraction form
    95,464.60/142,905.30 = 74,469.40/x
  3. Step 3: Cross multiply
    95,464.60x = 142,905.30 × 74,469.40
  4. Step 4: Simplify right side
    95,464.60x = 10,642,071,947.82
  5. Step 5: Solve for x
    x = 10,642,071,947.82/95,464.60
  6. Step 6: Final answer
    x = 111,476.63

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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.