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Finding the Fourth Proportional to 75,543.10, 113,401.95 and 40,551.10

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Solution

The fourth proportional to 75,543.10, 113,401.95 and 40,551.10 is: 60,873.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,543.10 : 113,401.95 = 40,551.10 : x
  2. Step 2: Convert to fraction form
    75,543.10/113,401.95 = 40,551.10/x
  3. Step 3: Cross multiply
    75,543.10x = 113,401.95 × 40,551.10
  4. Step 4: Simplify right side
    75,543.10x = 4,598,573,814.65
  5. Step 5: Solve for x
    x = 4,598,573,814.65/75,543.10
  6. Step 6: Final answer
    x = 60,873.51

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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.