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Finding the Fourth Proportional to 73,403.40, 101,289.78 and 50,766.60

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Solution

The fourth proportional to 73,403.40, 101,289.78 and 50,766.60 is: 70,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,403.40 : 101,289.78 = 50,766.60 : x
  2. Step 2: Convert to fraction form
    73,403.40/101,289.78 = 50,766.60/x
  3. Step 3: Cross multiply
    73,403.40x = 101,289.78 × 50,766.60
  4. Step 4: Simplify right side
    73,403.40x = 5,142,137,745.35
  5. Step 5: Solve for x
    x = 5,142,137,745.35/73,403.40
  6. Step 6: Final answer
    x = 70,053.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.