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Finding the Fourth Proportional to 67,260.60, 100,890.90 and 49,807.80

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Solution

The fourth proportional to 67,260.60, 100,890.90 and 49,807.80 is: 74,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,260.60 : 100,890.90 = 49,807.80 : x
  2. Step 2: Convert to fraction form
    67,260.60/100,890.90 = 49,807.80/x
  3. Step 3: Cross multiply
    67,260.60x = 100,890.90 × 49,807.80
  4. Step 4: Simplify right side
    67,260.60x = 5,025,153,769.02
  5. Step 5: Solve for x
    x = 5,025,153,769.02/67,260.60
  6. Step 6: Final answer
    x = 74,711.70

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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.