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Finding the Fourth Proportional to 75,346.88, 103,983.57 and 41,812.88

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Solution

The fourth proportional to 75,346.88, 103,983.57 and 41,812.88 is: 57,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,346.88 : 103,983.57 = 41,812.88 : x
  2. Step 2: Convert to fraction form
    75,346.88/103,983.57 = 41,812.88/x
  3. Step 3: Cross multiply
    75,346.88x = 103,983.57 × 41,812.88
  4. Step 4: Simplify right side
    75,346.88x = 4,347,852,014.46
  5. Step 5: Solve for x
    x = 4,347,852,014.46/75,346.88
  6. Step 6: Final answer
    x = 57,704.48

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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.