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Finding the Fourth Proportional to 72,452.80, 108,533.40 and 48,833.20

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Solution

The fourth proportional to 72,452.80, 108,533.40 and 48,833.20 is: 73,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,452.80 : 108,533.40 = 48,833.20 : x
  2. Step 2: Convert to fraction form
    72,452.80/108,533.40 = 48,833.20/x
  3. Step 3: Cross multiply
    72,452.80x = 108,533.40 × 48,833.20
  4. Step 4: Simplify right side
    72,452.80x = 5,300,033,228.88
  5. Step 5: Solve for x
    x = 5,300,033,228.88/72,452.80
  6. Step 6: Final answer
    x = 73,151.53

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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.