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Finding the Fourth Proportional to 7,167,402.38, 9,890,735.54 and 4,381,190.30

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Solution

The fourth proportional to 7,167,402.38, 9,890,735.54 and 4,381,190.30 is: 6,045,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167,402.38 : 9,890,735.54 = 4,381,190.30 : x
  2. Step 2: Convert to fraction form
    7,167,402.38/9,890,735.54 = 4,381,190.30/x
  3. Step 3: Cross multiply
    7,167,402.38x = 9,890,735.54 × 4,381,190.30
  4. Step 4: Simplify right side
    7,167,402.38x = 43,333,194,536,353.63
  5. Step 5: Solve for x
    x = 43,333,194,536,353.63/7,167,402.38
  6. Step 6: Final answer
    x = 6,045,871.61

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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.