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Finding the Fourth Proportional to 90,533.03, 135,755.81 and 37,928.39

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Solution

The fourth proportional to 90,533.03, 135,755.81 and 37,928.39 is: 56,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,533.03 : 135,755.81 = 37,928.39 : x
  2. Step 2: Convert to fraction form
    90,533.03/135,755.81 = 37,928.39/x
  3. Step 3: Cross multiply
    90,533.03x = 135,755.81 × 37,928.39
  4. Step 4: Simplify right side
    90,533.03x = 5,148,999,598.42
  5. Step 5: Solve for x
    x = 5,148,999,598.42/90,533.03
  6. Step 6: Final answer
    x = 56,874.26

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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.