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Finding the Fourth Proportional to 270,922.80, 405,232.20 and 243,044.40

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Solution

The fourth proportional to 270,922.80, 405,232.20 and 243,044.40 is: 363,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,922.80 : 405,232.20 = 243,044.40 : x
  2. Step 2: Convert to fraction form
    270,922.80/405,232.20 = 243,044.40/x
  3. Step 3: Cross multiply
    270,922.80x = 405,232.20 × 243,044.40
  4. Step 4: Simplify right side
    270,922.80x = 98,489,416,909.68
  5. Step 5: Solve for x
    x = 98,489,416,909.68/270,922.80
  6. Step 6: Final answer
    x = 363,533.14

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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.