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Finding the Fourth Proportional to 227,405.60, 341,389.20 and 143,165.60

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Solution

The fourth proportional to 227,405.60, 341,389.20 and 143,165.60 is: 214,925.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,405.60 : 341,389.20 = 143,165.60 : x
  2. Step 2: Convert to fraction form
    227,405.60/341,389.20 = 143,165.60/x
  3. Step 3: Cross multiply
    227,405.60x = 341,389.20 × 143,165.60
  4. Step 4: Simplify right side
    227,405.60x = 48,875,189,651.52
  5. Step 5: Solve for x
    x = 48,875,189,651.52/227,405.60
  6. Step 6: Final answer
    x = 214,925.18

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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.