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Finding the Fourth Proportional to 78,500.53, 108,328.47 and 44,512.27

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Solution

The fourth proportional to 78,500.53, 108,328.47 and 44,512.27 is: 61,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,500.53 : 108,328.47 = 44,512.27 : x
  2. Step 2: Convert to fraction form
    78,500.53/108,328.47 = 44,512.27/x
  3. Step 3: Cross multiply
    78,500.53x = 108,328.47 × 44,512.27
  4. Step 4: Simplify right side
    78,500.53x = 4,821,946,105.33
  5. Step 5: Solve for x
    x = 4,821,946,105.33/78,500.53
  6. Step 6: Final answer
    x = 61,425.65

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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.