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Finding the Fourth Proportional to 73,173.06, 100,980.72 and 40,906.76

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Solution

The fourth proportional to 73,173.06, 100,980.72 and 40,906.76 is: 56,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,173.06 : 100,980.72 = 40,906.76 : x
  2. Step 2: Convert to fraction form
    73,173.06/100,980.72 = 40,906.76/x
  3. Step 3: Cross multiply
    73,173.06x = 100,980.72 × 40,906.76
  4. Step 4: Simplify right side
    73,173.06x = 4,130,793,572.76
  5. Step 5: Solve for x
    x = 4,130,793,572.76/73,173.06
  6. Step 6: Final answer
    x = 56,452.38

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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.