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Finding the Fourth Proportional to 318,491.22, 477,211.95 and 184,996.74

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Solution

The fourth proportional to 318,491.22, 477,211.95 and 184,996.74 is: 277,190.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,491.22 : 477,211.95 = 184,996.74 : x
  2. Step 2: Convert to fraction form
    318,491.22/477,211.95 = 184,996.74/x
  3. Step 3: Cross multiply
    318,491.22x = 477,211.95 × 184,996.74
  4. Step 4: Simplify right side
    318,491.22x = 88,282,655,039.04
  5. Step 5: Solve for x
    x = 88,282,655,039.04/318,491.22
  6. Step 6: Final answer
    x = 277,190.23

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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.