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Finding the Fourth Proportional to 75,792.88, 104,589.74 and 43,520.05

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Solution

The fourth proportional to 75,792.88, 104,589.74 and 43,520.05 is: 60,055.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,792.88 : 104,589.74 = 43,520.05 : x
  2. Step 2: Convert to fraction form
    75,792.88/104,589.74 = 43,520.05/x
  3. Step 3: Cross multiply
    75,792.88x = 104,589.74 × 43,520.05
  4. Step 4: Simplify right side
    75,792.88x = 4,551,750,953.82
  5. Step 5: Solve for x
    x = 4,551,750,953.82/75,792.88
  6. Step 6: Final answer
    x = 60,055.12

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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.