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Finding the Fourth Proportional to 79,960.40, 119,710.20 and 48,856.40

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Solution

The fourth proportional to 79,960.40, 119,710.20 and 48,856.40 is: 73,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,960.40 : 119,710.20 = 48,856.40 : x
  2. Step 2: Convert to fraction form
    79,960.40/119,710.20 = 48,856.40/x
  3. Step 3: Cross multiply
    79,960.40x = 119,710.20 × 48,856.40
  4. Step 4: Simplify right side
    79,960.40x = 5,848,609,415.28
  5. Step 5: Solve for x
    x = 5,848,609,415.28/79,960.40
  6. Step 6: Final answer
    x = 73,143.82

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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.