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Finding the Fourth Proportional to 75,310.12, 103,942.74 and 43,477.12

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Solution

The fourth proportional to 75,310.12, 103,942.74 and 43,477.12 is: 60,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,310.12 : 103,942.74 = 43,477.12 : x
  2. Step 2: Convert to fraction form
    75,310.12/103,942.74 = 43,477.12/x
  3. Step 3: Cross multiply
    75,310.12x = 103,942.74 × 43,477.12
  4. Step 4: Simplify right side
    75,310.12x = 4,519,130,980.11
  5. Step 5: Solve for x
    x = 4,519,130,980.11/75,310.12
  6. Step 6: Final answer
    x = 60,006.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.