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Finding the Fourth Proportional to 185,847.30, 278,880.30 and 67,530.60

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Solution

The fourth proportional to 185,847.30, 278,880.30 and 67,530.60 is: 101,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,847.30 : 278,880.30 = 67,530.60 : x
  2. Step 2: Convert to fraction form
    185,847.30/278,880.30 = 67,530.60/x
  3. Step 3: Cross multiply
    185,847.30x = 278,880.30 × 67,530.60
  4. Step 4: Simplify right side
    185,847.30x = 18,832,953,987.18
  5. Step 5: Solve for x
    x = 18,832,953,987.18/185,847.30
  6. Step 6: Final answer
    x = 101,335.63

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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.