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Finding the Fourth Proportional to 193,548.20, 289,739.10 and 170,220.20

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Solution

The fourth proportional to 193,548.20, 289,739.10 and 170,220.20 is: 254,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,548.20 : 289,739.10 = 170,220.20 : x
  2. Step 2: Convert to fraction form
    193,548.20/289,739.10 = 170,220.20/x
  3. Step 3: Cross multiply
    193,548.20x = 289,739.10 × 170,220.20
  4. Step 4: Simplify right side
    193,548.20x = 49,319,447,549.82
  5. Step 5: Solve for x
    x = 49,319,447,549.82/193,548.20
  6. Step 6: Final answer
    x = 254,817.39

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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.