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Finding the Fourth Proportional to 227,762.60, 341,643.90 and 215,515.40

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Solution

The fourth proportional to 227,762.60, 341,643.90 and 215,515.40 is: 323,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,762.60 : 341,643.90 = 215,515.40 : x
  2. Step 2: Convert to fraction form
    227,762.60/341,643.90 = 215,515.40/x
  3. Step 3: Cross multiply
    227,762.60x = 341,643.90 × 215,515.40
  4. Step 4: Simplify right side
    227,762.60x = 73,629,521,766.06
  5. Step 5: Solve for x
    x = 73,629,521,766.06/227,762.60
  6. Step 6: Final answer
    x = 323,273.10

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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.