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Finding the Fourth Proportional to 156,959.60, 235,439.40 and 109,720.40

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Solution

The fourth proportional to 156,959.60, 235,439.40 and 109,720.40 is: 164,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959.60 : 235,439.40 = 109,720.40 : x
  2. Step 2: Convert to fraction form
    156,959.60/235,439.40 = 109,720.40/x
  3. Step 3: Cross multiply
    156,959.60x = 235,439.40 × 109,720.40
  4. Step 4: Simplify right side
    156,959.60x = 25,832,505,143.76
  5. Step 5: Solve for x
    x = 25,832,505,143.76/156,959.60
  6. Step 6: Final answer
    x = 164,580.60

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1.5x scale

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.