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Finding the Fourth Proportional to 156,719.60, 234,690.60 and 125,615.60

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Solution

The fourth proportional to 156,719.60, 234,690.60 and 125,615.60 is: 188,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,719.60 : 234,690.60 = 125,615.60 : x
  2. Step 2: Convert to fraction form
    156,719.60/234,690.60 = 125,615.60/x
  3. Step 3: Cross multiply
    156,719.60x = 234,690.60 × 125,615.60
  4. Step 4: Simplify right side
    156,719.60x = 29,480,800,533.36
  5. Step 5: Solve for x
    x = 29,480,800,533.36/156,719.60
  6. Step 6: Final answer
    x = 188,111.76

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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.