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Finding the Fourth Proportional to 78,317.75, 108,052.76 and 44,322.86

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Solution

The fourth proportional to 78,317.75, 108,052.76 and 44,322.86 is: 61,150.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,317.75 : 108,052.76 = 44,322.86 : x
  2. Step 2: Convert to fraction form
    78,317.75/108,052.76 = 44,322.86/x
  3. Step 3: Cross multiply
    78,317.75x = 108,052.76 × 44,322.86
  4. Step 4: Simplify right side
    78,317.75x = 4,789,206,592.22
  5. Step 5: Solve for x
    x = 4,789,206,592.22/78,317.75
  6. Step 6: Final answer
    x = 61,150.98

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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.