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Finding the Fourth Proportional to 103,625.60, 155,438.40 and 95,676.80

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Solution

The fourth proportional to 103,625.60, 155,438.40 and 95,676.80 is: 143,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.60 : 155,438.40 = 95,676.80 : x
  2. Step 2: Convert to fraction form
    103,625.60/155,438.40 = 95,676.80/x
  3. Step 3: Cross multiply
    103,625.60x = 155,438.40 × 95,676.80
  4. Step 4: Simplify right side
    103,625.60x = 14,871,848,709.12
  5. Step 5: Solve for x
    x = 14,871,848,709.12/103,625.60
  6. Step 6: Final answer
    x = 143,515.20

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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.