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Finding the Fourth Proportional to 75,980.60, 104,847.96 and 41,988.75

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Solution

The fourth proportional to 75,980.60, 104,847.96 and 41,988.75 is: 57,941.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,980.60 : 104,847.96 = 41,988.75 : x
  2. Step 2: Convert to fraction form
    75,980.60/104,847.96 = 41,988.75/x
  3. Step 3: Cross multiply
    75,980.60x = 104,847.96 × 41,988.75
  4. Step 4: Simplify right side
    75,980.60x = 4,402,434,780.45
  5. Step 5: Solve for x
    x = 4,402,434,780.45/75,980.60
  6. Step 6: Final answer
    x = 57,941.57

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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.