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Finding the Fourth Proportional to 79,295.60, 109,432.94 and 52,390.96

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Solution

The fourth proportional to 79,295.60, 109,432.94 and 52,390.96 is: 72,302.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,295.60 : 109,432.94 = 52,390.96 : x
  2. Step 2: Convert to fraction form
    79,295.60/109,432.94 = 52,390.96/x
  3. Step 3: Cross multiply
    79,295.60x = 109,432.94 × 52,390.96
  4. Step 4: Simplify right side
    79,295.60x = 5,733,296,782.22
  5. Step 5: Solve for x
    x = 5,733,296,782.22/79,295.60
  6. Step 6: Final answer
    x = 72,302.84

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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.