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Finding the Fourth Proportional to 75,750.70, 104,498.76 and 48,883

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Solution

The fourth proportional to 75,750.70, 104,498.76 and 48,883 is: 67,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,750.70 : 104,498.76 = 48,883 : x
  2. Step 2: Convert to fraction form
    75,750.70/104,498.76 = 48,883/x
  3. Step 3: Cross multiply
    75,750.70x = 104,498.76 × 48,883
  4. Step 4: Simplify right side
    75,750.70x = 5,108,212,885.08
  5. Step 5: Solve for x
    x = 5,108,212,885.08/75,750.70
  6. Step 6: Final answer
    x = 67,434.53

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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.