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Finding the Fourth Proportional to 188,388.30, 260,044.20 and 124,746.60

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Solution

The fourth proportional to 188,388.30, 260,044.20 and 124,746.60 is: 172,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,388.30 : 260,044.20 = 124,746.60 : x
  2. Step 2: Convert to fraction form
    188,388.30/260,044.20 = 124,746.60/x
  3. Step 3: Cross multiply
    188,388.30x = 260,044.20 × 124,746.60
  4. Step 4: Simplify right side
    188,388.30x = 32,439,629,799.72
  5. Step 5: Solve for x
    x = 32,439,629,799.72/188,388.30
  6. Step 6: Final answer
    x = 172,195.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.