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Finding the Fourth Proportional to 79,343.68, 109,494.26 and 45,352.89

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Solution

The fourth proportional to 79,343.68, 109,494.26 and 45,352.89 is: 62,586.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,343.68 : 109,494.26 = 45,352.89 : x
  2. Step 2: Convert to fraction form
    79,343.68/109,494.26 = 45,352.89/x
  3. Step 3: Cross multiply
    79,343.68x = 109,494.26 × 45,352.89
  4. Step 4: Simplify right side
    79,343.68x = 4,965,881,129.41
  5. Step 5: Solve for x
    x = 4,965,881,129.41/79,343.68
  6. Step 6: Final answer
    x = 62,586.98

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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.