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Finding the Fourth Proportional to 73,807.20, 110,710.80 and 50,187.60

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Solution

The fourth proportional to 73,807.20, 110,710.80 and 50,187.60 is: 75,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,807.20 : 110,710.80 = 50,187.60 : x
  2. Step 2: Convert to fraction form
    73,807.20/110,710.80 = 50,187.60/x
  3. Step 3: Cross multiply
    73,807.20x = 110,710.80 × 50,187.60
  4. Step 4: Simplify right side
    73,807.20x = 5,556,309,346.08
  5. Step 5: Solve for x
    x = 5,556,309,346.08/73,807.20
  6. Step 6: Final answer
    x = 75,281.40

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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.