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Finding the Fourth Proportional to 79,620.66, 119,405.64 and 26,302.74

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Solution

The fourth proportional to 79,620.66, 119,405.64 and 26,302.74 is: 39,445.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620.66 : 119,405.64 = 26,302.74 : x
  2. Step 2: Convert to fraction form
    79,620.66/119,405.64 = 26,302.74/x
  3. Step 3: Cross multiply
    79,620.66x = 119,405.64 × 26,302.74
  4. Step 4: Simplify right side
    79,620.66x = 3,140,695,503.45
  5. Step 5: Solve for x
    x = 3,140,695,503.45/79,620.66
  6. Step 6: Final answer
    x = 39,445.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.