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Finding the Fourth Proportional to 324,048.60, 485,416.80 and 183,643.20

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Solution

The fourth proportional to 324,048.60, 485,416.80 and 183,643.20 is: 275,092.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,048.60 : 485,416.80 = 183,643.20 : x
  2. Step 2: Convert to fraction form
    324,048.60/485,416.80 = 183,643.20/x
  3. Step 3: Cross multiply
    324,048.60x = 485,416.80 × 183,643.20
  4. Step 4: Simplify right side
    324,048.60x = 89,143,494,485.76
  5. Step 5: Solve for x
    x = 89,143,494,485.76/324,048.60
  6. Step 6: Final answer
    x = 275,092.98

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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.