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Finding the Fourth Proportional to 74,701.60, 112,072.20 and 32,563.60

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Solution

The fourth proportional to 74,701.60, 112,072.20 and 32,563.60 is: 48,854.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.60 : 112,072.20 = 32,563.60 : x
  2. Step 2: Convert to fraction form
    74,701.60/112,072.20 = 32,563.60/x
  3. Step 3: Cross multiply
    74,701.60x = 112,072.20 × 32,563.60
  4. Step 4: Simplify right side
    74,701.60x = 3,649,474,291.92
  5. Step 5: Solve for x
    x = 3,649,474,291.92/74,701.60
  6. Step 6: Final answer
    x = 48,854.03

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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.