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Finding the Fourth Proportional to 79,482.55, 109,685.58 and 43,672.45

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Solution

The fourth proportional to 79,482.55, 109,685.58 and 43,672.45 is: 60,267.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,482.55 : 109,685.58 = 43,672.45 : x
  2. Step 2: Convert to fraction form
    79,482.55/109,685.58 = 43,672.45/x
  3. Step 3: Cross multiply
    79,482.55x = 109,685.58 × 43,672.45
  4. Step 4: Simplify right side
    79,482.55x = 4,790,238,008.27
  5. Step 5: Solve for x
    x = 4,790,238,008.27/79,482.55
  6. Step 6: Final answer
    x = 60,267.79

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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.