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Finding the Fourth Proportional to 235,115.36, 352,697.36 and 77,343.60

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Solution

The fourth proportional to 235,115.36, 352,697.36 and 77,343.60 is: 116,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,115.36 : 352,697.36 = 77,343.60 : x
  2. Step 2: Convert to fraction form
    235,115.36/352,697.36 = 77,343.60/x
  3. Step 3: Cross multiply
    235,115.36x = 352,697.36 × 77,343.60
  4. Step 4: Simplify right side
    235,115.36x = 27,278,883,532.90
  5. Step 5: Solve for x
    x = 27,278,883,532.90/235,115.36
  6. Step 6: Final answer
    x = 116,023.40

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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.