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Finding the Fourth Proportional to 78,668.24, 108,558.39 and 44,672.24

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Solution

The fourth proportional to 78,668.24, 108,558.39 and 44,672.24 is: 61,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,668.24 : 108,558.39 = 44,672.24 : x
  2. Step 2: Convert to fraction form
    78,668.24/108,558.39 = 44,672.24/x
  3. Step 3: Cross multiply
    78,668.24x = 108,558.39 × 44,672.24
  4. Step 4: Simplify right side
    78,668.24x = 4,849,545,909.30
  5. Step 5: Solve for x
    x = 4,849,545,909.30/78,668.24
  6. Step 6: Final answer
    x = 61,645.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.