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Finding the Fourth Proportional to 193,562.20, 290,343.30 and 162,458.20

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Solution

The fourth proportional to 193,562.20, 290,343.30 and 162,458.20 is: 243,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,562.20 : 290,343.30 = 162,458.20 : x
  2. Step 2: Convert to fraction form
    193,562.20/290,343.30 = 162,458.20/x
  3. Step 3: Cross multiply
    193,562.20x = 290,343.30 × 162,458.20
  4. Step 4: Simplify right side
    193,562.20x = 47,168,649,900.06
  5. Step 5: Solve for x
    x = 47,168,649,900.06/193,562.20
  6. Step 6: Final answer
    x = 243,687.30

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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.