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Finding the Fourth Proportional to 79,457.52, 109,653.84 and 43,646.88

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Solution

The fourth proportional to 79,457.52, 109,653.84 and 43,646.88 is: 60,234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,457.52 : 109,653.84 = 43,646.88 : x
  2. Step 2: Convert to fraction form
    79,457.52/109,653.84 = 43,646.88/x
  3. Step 3: Cross multiply
    79,457.52x = 109,653.84 × 43,646.88
  4. Step 4: Simplify right side
    79,457.52x = 4,786,047,996.02
  5. Step 5: Solve for x
    x = 4,786,047,996.02/79,457.52
  6. Step 6: Final answer
    x = 60,234.05

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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.