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Finding the Fourth Proportional to 73,485.70, 110,232.15 and 38,493.70

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Solution

The fourth proportional to 73,485.70, 110,232.15 and 38,493.70 is: 57,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,485.70 : 110,232.15 = 38,493.70 : x
  2. Step 2: Convert to fraction form
    73,485.70/110,232.15 = 38,493.70/x
  3. Step 3: Cross multiply
    73,485.70x = 110,232.15 × 38,493.70
  4. Step 4: Simplify right side
    73,485.70x = 4,243,243,312.46
  5. Step 5: Solve for x
    x = 4,243,243,312.46/73,485.70
  6. Step 6: Final answer
    x = 57,742.44

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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.