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Finding the Fourth Proportional to 324,089.60, 486,131.20 and 102,473.60

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Solution

The fourth proportional to 324,089.60, 486,131.20 and 102,473.60 is: 153,709.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,089.60 : 486,131.20 = 102,473.60 : x
  2. Step 2: Convert to fraction form
    324,089.60/486,131.20 = 102,473.60/x
  3. Step 3: Cross multiply
    324,089.60x = 486,131.20 × 102,473.60
  4. Step 4: Simplify right side
    324,089.60x = 49,815,614,136.32
  5. Step 5: Solve for x
    x = 49,815,614,136.32/324,089.60
  6. Step 6: Final answer
    x = 153,709.39

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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.