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Finding the Fourth Proportional to 75,325.55, 103,938.39 and 48,504.42

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Solution

The fourth proportional to 75,325.55, 103,938.39 and 48,504.42 is: 66,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,325.55 : 103,938.39 = 48,504.42 : x
  2. Step 2: Convert to fraction form
    75,325.55/103,938.39 = 48,504.42/x
  3. Step 3: Cross multiply
    75,325.55x = 103,938.39 × 48,504.42
  4. Step 4: Simplify right side
    75,325.55x = 5,041,471,322.68
  5. Step 5: Solve for x
    x = 5,041,471,322.68/75,325.55
  6. Step 6: Final answer
    x = 66,929.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.