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Finding the Fourth Proportional to 79,461.99, 109,652.13 and 43,653.51

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Solution

The fourth proportional to 79,461.99, 109,652.13 and 43,653.51 is: 60,238.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,461.99 : 109,652.13 = 43,653.51 : x
  2. Step 2: Convert to fraction form
    79,461.99/109,652.13 = 43,653.51/x
  3. Step 3: Cross multiply
    79,461.99x = 109,652.13 × 43,653.51
  4. Step 4: Simplify right side
    79,461.99x = 4,786,700,353.48
  5. Step 5: Solve for x
    x = 4,786,700,353.48/79,461.99
  6. Step 6: Final answer
    x = 60,238.87

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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.