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Finding the Fourth Proportional to 79,766.10, 119,620.80 and 35,313.30

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Solution

The fourth proportional to 79,766.10, 119,620.80 and 35,313.30 is: 52,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,766.10 : 119,620.80 = 35,313.30 : x
  2. Step 2: Convert to fraction form
    79,766.10/119,620.80 = 35,313.30/x
  3. Step 3: Cross multiply
    79,766.10x = 119,620.80 × 35,313.30
  4. Step 4: Simplify right side
    79,766.10x = 4,224,205,196.64
  5. Step 5: Solve for x
    x = 4,224,205,196.64/79,766.10
  6. Step 6: Final answer
    x = 52,957.40

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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.