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Finding the Fourth Proportional to 193,086.80, 289,630.20 and 160,427.60

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Solution

The fourth proportional to 193,086.80, 289,630.20 and 160,427.60 is: 240,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,086.80 : 289,630.20 = 160,427.60 : x
  2. Step 2: Convert to fraction form
    193,086.80/289,630.20 = 160,427.60/x
  3. Step 3: Cross multiply
    193,086.80x = 289,630.20 × 160,427.60
  4. Step 4: Simplify right side
    193,086.80x = 46,464,677,873.52
  5. Step 5: Solve for x
    x = 46,464,677,873.52/193,086.80
  6. Step 6: Final answer
    x = 240,641.40

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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.