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Finding the Fourth Proportional to 79,494.55, 109,646.94 and 67,474.96

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Solution

The fourth proportional to 79,494.55, 109,646.94 and 67,474.96 is: 93,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,494.55 : 109,646.94 = 67,474.96 : x
  2. Step 2: Convert to fraction form
    79,494.55/109,646.94 = 67,474.96/x
  3. Step 3: Cross multiply
    79,494.55x = 109,646.94 × 67,474.96
  4. Step 4: Simplify right side
    79,494.55x = 7,398,422,890.62
  5. Step 5: Solve for x
    x = 7,398,422,890.62/79,494.55
  6. Step 6: Final answer
    x = 93,068.30

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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.