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Finding the Fourth Proportional to 79,308.91, 109,446.45 and 43,499.22

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Solution

The fourth proportional to 79,308.91, 109,446.45 and 43,499.22 is: 60,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,308.91 : 109,446.45 = 43,499.22 : x
  2. Step 2: Convert to fraction form
    79,308.91/109,446.45 = 43,499.22/x
  3. Step 3: Cross multiply
    79,308.91x = 109,446.45 × 43,499.22
  4. Step 4: Simplify right side
    79,308.91x = 4,760,835,206.77
  5. Step 5: Solve for x
    x = 4,760,835,206.77/79,308.91
  6. Step 6: Final answer
    x = 60,029.01

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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.