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Finding the Fourth Proportional to 79,428.96, 119,105.70 and 46,158.60

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Solution

The fourth proportional to 79,428.96, 119,105.70 and 46,158.60 is: 69,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,428.96 : 119,105.70 = 46,158.60 : x
  2. Step 2: Convert to fraction form
    79,428.96/119,105.70 = 46,158.60/x
  3. Step 3: Cross multiply
    79,428.96x = 119,105.70 × 46,158.60
  4. Step 4: Simplify right side
    79,428.96x = 5,497,752,364.02
  5. Step 5: Solve for x
    x = 5,497,752,364.02/79,428.96
  6. Step 6: Final answer
    x = 69,215.97

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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.