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Finding the Fourth Proportional to 72,041.96, 107,975.39 and 50,988.12

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Solution

The fourth proportional to 72,041.96, 107,975.39 and 50,988.12 is: 76,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,041.96 : 107,975.39 = 50,988.12 : x
  2. Step 2: Convert to fraction form
    72,041.96/107,975.39 = 50,988.12/x
  3. Step 3: Cross multiply
    72,041.96x = 107,975.39 × 50,988.12
  4. Step 4: Simplify right side
    72,041.96x = 5,505,461,887.43
  5. Step 5: Solve for x
    x = 5,505,461,887.43/72,041.96
  6. Step 6: Final answer
    x = 76,420.22

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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.