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Finding the Fourth Proportional to 91,408.40, 137,047.80 and 35,226.80

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Solution

The fourth proportional to 91,408.40, 137,047.80 and 35,226.80 is: 52,815.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,408.40 : 137,047.80 = 35,226.80 : x
  2. Step 2: Convert to fraction form
    91,408.40/137,047.80 = 35,226.80/x
  3. Step 3: Cross multiply
    91,408.40x = 137,047.80 × 35,226.80
  4. Step 4: Simplify right side
    91,408.40x = 4,827,755,441.04
  5. Step 5: Solve for x
    x = 4,827,755,441.04/91,408.40
  6. Step 6: Final answer
    x = 52,815.23

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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.