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Finding the Fourth Proportional to 79,263.20, 118,860.20 and 29,980.64

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Solution

The fourth proportional to 79,263.20, 118,860.20 and 29,980.64 is: 44,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,263.20 : 118,860.20 = 29,980.64 : x
  2. Step 2: Convert to fraction form
    79,263.20/118,860.20 = 29,980.64/x
  3. Step 3: Cross multiply
    79,263.20x = 118,860.20 × 29,980.64
  4. Step 4: Simplify right side
    79,263.20x = 3,563,504,866.53
  5. Step 5: Solve for x
    x = 3,563,504,866.53/79,263.20
  6. Step 6: Final answer
    x = 44,957.87

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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.