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Finding the Fourth Proportional to 222,705.30, 334,098.45 and 72,903.90

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Solution

The fourth proportional to 222,705.30, 334,098.45 and 72,903.90 is: 109,369.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,705.30 : 334,098.45 = 72,903.90 : x
  2. Step 2: Convert to fraction form
    222,705.30/334,098.45 = 72,903.90/x
  3. Step 3: Cross multiply
    222,705.30x = 334,098.45 × 72,903.90
  4. Step 4: Simplify right side
    222,705.30x = 24,357,079,988.96
  5. Step 5: Solve for x
    x = 24,357,079,988.96/222,705.30
  6. Step 6: Final answer
    x = 109,369.11

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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.