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Finding the Fourth Proportional to 222,539.46, 333,861.70 and 72,779.16

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Solution

The fourth proportional to 222,539.46, 333,861.70 and 72,779.16 is: 109,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,539.46 : 333,861.70 = 72,779.16 : x
  2. Step 2: Convert to fraction form
    222,539.46/333,861.70 = 72,779.16/x
  3. Step 3: Cross multiply
    222,539.46x = 333,861.70 × 72,779.16
  4. Step 4: Simplify right side
    222,539.46x = 24,298,174,082.17
  5. Step 5: Solve for x
    x = 24,298,174,082.17/222,539.46
  6. Step 6: Final answer
    x = 109,185.91

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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.