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Finding the Fourth Proportional to 88,035.60, 131,907.60 and 74,913.60

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Solution

The fourth proportional to 88,035.60, 131,907.60 and 74,913.60 is: 112,246.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,035.60 : 131,907.60 = 74,913.60 : x
  2. Step 2: Convert to fraction form
    88,035.60/131,907.60 = 74,913.60/x
  3. Step 3: Cross multiply
    88,035.60x = 131,907.60 × 74,913.60
  4. Step 4: Simplify right side
    88,035.60x = 9,881,673,183.36
  5. Step 5: Solve for x
    x = 9,881,673,183.36/88,035.60
  6. Step 6: Final answer
    x = 112,246.33

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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.