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Finding the Fourth Proportional to 193,246.80, 289,870.20 and 171,085.20

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Solution

The fourth proportional to 193,246.80, 289,870.20 and 171,085.20 is: 256,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,246.80 : 289,870.20 = 171,085.20 : x
  2. Step 2: Convert to fraction form
    193,246.80/289,870.20 = 171,085.20/x
  3. Step 3: Cross multiply
    193,246.80x = 289,870.20 × 171,085.20
  4. Step 4: Simplify right side
    193,246.80x = 49,592,501,141.04
  5. Step 5: Solve for x
    x = 49,592,501,141.04/193,246.80
  6. Step 6: Final answer
    x = 256,627.80

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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.