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Finding the Fourth Proportional to 481,308.48, 721,893.60 and 148,841.28

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Solution

The fourth proportional to 481,308.48, 721,893.60 and 148,841.28 is: 223,240.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,308.48 : 721,893.60 = 148,841.28 : x
  2. Step 2: Convert to fraction form
    481,308.48/721,893.60 = 148,841.28/x
  3. Step 3: Cross multiply
    481,308.48x = 721,893.60 × 148,841.28
  4. Step 4: Simplify right side
    481,308.48x = 107,447,567,447.81
  5. Step 5: Solve for x
    x = 107,447,567,447.81/481,308.48
  6. Step 6: Final answer
    x = 223,240.55

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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.