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Finding the Fourth Proportional to 79,303.64, 109,438.92 and 43,494.24

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Solution

The fourth proportional to 79,303.64, 109,438.92 and 43,494.24 is: 60,021.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,303.64 : 109,438.92 = 43,494.24 : x
  2. Step 2: Convert to fraction form
    79,303.64/109,438.92 = 43,494.24/x
  3. Step 3: Cross multiply
    79,303.64x = 109,438.92 × 43,494.24
  4. Step 4: Simplify right side
    79,303.64x = 4,759,962,651.82
  5. Step 5: Solve for x
    x = 4,759,962,651.82/79,303.64
  6. Step 6: Final answer
    x = 60,021.99

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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.