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Finding the Fourth Proportional to 193,643.60, 289,687.80 and 167,637.20

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Solution

The fourth proportional to 193,643.60, 289,687.80 and 167,637.20 is: 250,782.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,643.60 : 289,687.80 = 167,637.20 : x
  2. Step 2: Convert to fraction form
    193,643.60/289,687.80 = 167,637.20/x
  3. Step 3: Cross multiply
    193,643.60x = 289,687.80 × 167,637.20
  4. Step 4: Simplify right side
    193,643.60x = 48,562,451,666.16
  5. Step 5: Solve for x
    x = 48,562,451,666.16/193,643.60
  6. Step 6: Final answer
    x = 250,782.63

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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.