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Finding the Fourth Proportional to 91,996.40, 137,994.60 and 91,996.40

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Solution

The fourth proportional to 91,996.40, 137,994.60 and 91,996.40 is: 137,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,996.40 : 137,994.60 = 91,996.40 : x
  2. Step 2: Convert to fraction form
    91,996.40/137,994.60 = 91,996.40/x
  3. Step 3: Cross multiply
    91,996.40x = 137,994.60 × 91,996.40
  4. Step 4: Simplify right side
    91,996.40x = 12,695,006,419.44
  5. Step 5: Solve for x
    x = 12,695,006,419.44/91,996.40
  6. Step 6: Final answer
    x = 137,994.60

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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.