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Finding the Fourth Proportional to 73,548.80, 110,368.80 and 38,513.60

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Solution

The fourth proportional to 73,548.80, 110,368.80 and 38,513.60 is: 57,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,548.80 : 110,368.80 = 38,513.60 : x
  2. Step 2: Convert to fraction form
    73,548.80/110,368.80 = 38,513.60/x
  3. Step 3: Cross multiply
    73,548.80x = 110,368.80 × 38,513.60
  4. Step 4: Simplify right side
    73,548.80x = 4,250,699,815.68
  5. Step 5: Solve for x
    x = 4,250,699,815.68/73,548.80
  6. Step 6: Final answer
    x = 57,794.28

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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.