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Finding the Fourth Proportional to 78,035.98, 107,690.03 and 44,045.90

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Solution

The fourth proportional to 78,035.98, 107,690.03 and 44,045.90 is: 60,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035.98 : 107,690.03 = 44,045.90 : x
  2. Step 2: Convert to fraction form
    78,035.98/107,690.03 = 44,045.90/x
  3. Step 3: Cross multiply
    78,035.98x = 107,690.03 × 44,045.90
  4. Step 4: Simplify right side
    78,035.98x = 4,743,304,072.15
  5. Step 5: Solve for x
    x = 4,743,304,072.15/78,035.98
  6. Step 6: Final answer
    x = 60,783.56

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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.