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Finding the Fourth Proportional to 103,605.68, 155,408.56 and 44,402.96

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Solution

The fourth proportional to 103,605.68, 155,408.56 and 44,402.96 is: 66,604.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,605.68 : 155,408.56 = 44,402.96 : x
  2. Step 2: Convert to fraction form
    103,605.68/155,408.56 = 44,402.96/x
  3. Step 3: Cross multiply
    103,605.68x = 155,408.56 × 44,402.96
  4. Step 4: Simplify right side
    103,605.68x = 6,900,600,073.34
  5. Step 5: Solve for x
    x = 6,900,600,073.34/103,605.68
  6. Step 6: Final answer
    x = 66,604.46

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1.5x scale

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.