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Finding the Fourth Proportional to 220,884.40, 331,326.60 and 73,140.40

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Solution

The fourth proportional to 220,884.40, 331,326.60 and 73,140.40 is: 109,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,884.40 : 331,326.60 = 73,140.40 : x
  2. Step 2: Convert to fraction form
    220,884.40/331,326.60 = 73,140.40/x
  3. Step 3: Cross multiply
    220,884.40x = 331,326.60 × 73,140.40
  4. Step 4: Simplify right side
    220,884.40x = 24,233,360,054.64
  5. Step 5: Solve for x
    x = 24,233,360,054.64/220,884.40
  6. Step 6: Final answer
    x = 109,710.60

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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.