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Finding the Fourth Proportional to 437,081.60, 655,739.04 and 156,627.20

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Solution

The fourth proportional to 437,081.60, 655,739.04 and 156,627.20 is: 234,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,081.60 : 655,739.04 = 156,627.20 : x
  2. Step 2: Convert to fraction form
    437,081.60/655,739.04 = 156,627.20/x
  3. Step 3: Cross multiply
    437,081.60x = 655,739.04 × 156,627.20
  4. Step 4: Simplify right side
    437,081.60x = 102,706,571,992.59
  5. Step 5: Solve for x
    x = 102,706,571,992.59/437,081.60
  6. Step 6: Final answer
    x = 234,982.60

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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.