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Finding the Fourth Proportional to 273,030.96, 409,518.75 and 73,325.39

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Solution

The fourth proportional to 273,030.96, 409,518.75 and 73,325.39 is: 109,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,030.96 : 409,518.75 = 73,325.39 : x
  2. Step 2: Convert to fraction form
    273,030.96/409,518.75 = 73,325.39/x
  3. Step 3: Cross multiply
    273,030.96x = 409,518.75 × 73,325.39
  4. Step 4: Simplify right side
    273,030.96x = 30,028,123,079.86
  5. Step 5: Solve for x
    x = 30,028,123,079.86/273,030.96
  6. Step 6: Final answer
    x = 109,980.65

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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.