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Finding the Fourth Proportional to 92,115.99, 137,455.56 and 82,187.01

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Solution

The fourth proportional to 92,115.99, 137,455.56 and 82,187.01 is: 122,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,115.99 : 137,455.56 = 82,187.01 : x
  2. Step 2: Convert to fraction form
    92,115.99/137,455.56 = 82,187.01/x
  3. Step 3: Cross multiply
    92,115.99x = 137,455.56 × 82,187.01
  4. Step 4: Simplify right side
    92,115.99x = 11,297,061,484.28
  5. Step 5: Solve for x
    x = 11,297,061,484.28/92,115.99
  6. Step 6: Final answer
    x = 122,639.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.