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Finding the Fourth Proportional to 75,912.59, 113,884.94 and 28,528.10

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Solution

The fourth proportional to 75,912.59, 113,884.94 and 28,528.10 is: 42,798.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,912.59 : 113,884.94 = 28,528.10 : x
  2. Step 2: Convert to fraction form
    75,912.59/113,884.94 = 28,528.10/x
  3. Step 3: Cross multiply
    75,912.59x = 113,884.94 × 28,528.10
  4. Step 4: Simplify right side
    75,912.59x = 3,248,920,244.75
  5. Step 5: Solve for x
    x = 3,248,920,244.75/75,912.59
  6. Step 6: Final answer
    x = 42,798.18

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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.