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Finding the Fourth Proportional to 312,015.60, 467,850.60 and 134,492.40

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Solution

The fourth proportional to 312,015.60, 467,850.60 and 134,492.40 is: 201,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,015.60 : 467,850.60 = 134,492.40 : x
  2. Step 2: Convert to fraction form
    312,015.60/467,850.60 = 134,492.40/x
  3. Step 3: Cross multiply
    312,015.60x = 467,850.60 × 134,492.40
  4. Step 4: Simplify right side
    312,015.60x = 62,922,350,035.44
  5. Step 5: Solve for x
    x = 62,922,350,035.44/312,015.60
  6. Step 6: Final answer
    x = 201,664.12

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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.