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Finding the Fourth Proportional to 79,197.79, 118,814.42 and 26,605.84

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Solution

The fourth proportional to 79,197.79, 118,814.42 and 26,605.84 is: 39,914.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,197.79 : 118,814.42 = 26,605.84 : x
  2. Step 2: Convert to fraction form
    79,197.79/118,814.42 = 26,605.84/x
  3. Step 3: Cross multiply
    79,197.79x = 118,814.42 × 26,605.84
  4. Step 4: Simplify right side
    79,197.79x = 3,161,157,678.73
  5. Step 5: Solve for x
    x = 3,161,157,678.73/79,197.79
  6. Step 6: Final answer
    x = 39,914.72

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1.5x scale

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.