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Finding the Fourth Proportional to 79,813.80, 119,720.70 and 44,384.40

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Solution

The fourth proportional to 79,813.80, 119,720.70 and 44,384.40 is: 66,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,813.80 : 119,720.70 = 44,384.40 : x
  2. Step 2: Convert to fraction form
    79,813.80/119,720.70 = 44,384.40/x
  3. Step 3: Cross multiply
    79,813.80x = 119,720.70 × 44,384.40
  4. Step 4: Simplify right side
    79,813.80x = 5,313,731,437.08
  5. Step 5: Solve for x
    x = 5,313,731,437.08/79,813.80
  6. Step 6: Final answer
    x = 66,576.60

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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.