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Finding the Fourth Proportional to 75,473.99, 113,210.98 and 28,087.85

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Solution

The fourth proportional to 75,473.99, 113,210.98 and 28,087.85 is: 42,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,473.99 : 113,210.98 = 28,087.85 : x
  2. Step 2: Convert to fraction form
    75,473.99/113,210.98 = 28,087.85/x
  3. Step 3: Cross multiply
    75,473.99x = 113,210.98 × 28,087.85
  4. Step 4: Simplify right side
    75,473.99x = 3,179,853,059.70
  5. Step 5: Solve for x
    x = 3,179,853,059.70/75,473.99
  6. Step 6: Final answer
    x = 42,131.77

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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.