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Finding the Fourth Proportional to 82,800.40, 124,200.60 and 49,622.80

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Solution

The fourth proportional to 82,800.40, 124,200.60 and 49,622.80 is: 74,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,800.40 : 124,200.60 = 49,622.80 : x
  2. Step 2: Convert to fraction form
    82,800.40/124,200.60 = 49,622.80/x
  3. Step 3: Cross multiply
    82,800.40x = 124,200.60 × 49,622.80
  4. Step 4: Simplify right side
    82,800.40x = 6,163,181,533.68
  5. Step 5: Solve for x
    x = 6,163,181,533.68/82,800.40
  6. Step 6: Final answer
    x = 74,434.20

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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.