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Finding the Fourth Proportional to 371,668.48, 557,589.12 and 122,352.64

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Solution

The fourth proportional to 371,668.48, 557,589.12 and 122,352.64 is: 183,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,668.48 : 557,589.12 = 122,352.64 : x
  2. Step 2: Convert to fraction form
    371,668.48/557,589.12 = 122,352.64/x
  3. Step 3: Cross multiply
    371,668.48x = 557,589.12 × 122,352.64
  4. Step 4: Simplify right side
    371,668.48x = 68,222,500,867.28
  5. Step 5: Solve for x
    x = 68,222,500,867.28/371,668.48
  6. Step 6: Final answer
    x = 183,557.40

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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.