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Finding the Fourth Proportional to 75,757.95, 104,522.80 and 43,920.50

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Solution

The fourth proportional to 75,757.95, 104,522.80 and 43,920.50 is: 60,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,757.95 : 104,522.80 = 43,920.50 : x
  2. Step 2: Convert to fraction form
    75,757.95/104,522.80 = 43,920.50/x
  3. Step 3: Cross multiply
    75,757.95x = 104,522.80 × 43,920.50
  4. Step 4: Simplify right side
    75,757.95x = 4,590,693,293.21
  5. Step 5: Solve for x
    x = 4,590,693,293.21/75,757.95
  6. Step 6: Final answer
    x = 60,596.85

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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.