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Finding the Fourth Proportional to 223,116.72, 307,900.44 and 133,692.72

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Solution

The fourth proportional to 223,116.72, 307,900.44 and 133,692.72 is: 184,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,116.72 : 307,900.44 = 133,692.72 : x
  2. Step 2: Convert to fraction form
    223,116.72/307,900.44 = 133,692.72/x
  3. Step 3: Cross multiply
    223,116.72x = 307,900.44 × 133,692.72
  4. Step 4: Simplify right side
    223,116.72x = 41,164,047,312.80
  5. Step 5: Solve for x
    x = 41,164,047,312.80/223,116.72
  6. Step 6: Final answer
    x = 184,495.57

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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.