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Finding the Fourth Proportional to 324,885.60, 487,328.40 and 114,544.80

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Solution

The fourth proportional to 324,885.60, 487,328.40 and 114,544.80 is: 171,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,885.60 : 487,328.40 = 114,544.80 : x
  2. Step 2: Convert to fraction form
    324,885.60/487,328.40 = 114,544.80/x
  3. Step 3: Cross multiply
    324,885.60x = 487,328.40 × 114,544.80
  4. Step 4: Simplify right side
    324,885.60x = 55,820,934,112.32
  5. Step 5: Solve for x
    x = 55,820,934,112.32/324,885.60
  6. Step 6: Final answer
    x = 171,817.20

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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.