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Finding the Fourth Proportional to 195,324.60, 292,986.90 and 115,280.40

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Solution

The fourth proportional to 195,324.60, 292,986.90 and 115,280.40 is: 172,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,324.60 : 292,986.90 = 115,280.40 : x
  2. Step 2: Convert to fraction form
    195,324.60/292,986.90 = 115,280.40/x
  3. Step 3: Cross multiply
    195,324.60x = 292,986.90 × 115,280.40
  4. Step 4: Simplify right side
    195,324.60x = 33,775,647,026.76
  5. Step 5: Solve for x
    x = 33,775,647,026.76/195,324.60
  6. Step 6: Final answer
    x = 172,920.60

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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.