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Finding the Fourth Proportional to 88,081.74, 121,551.84 and 47,796.39

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Solution

The fourth proportional to 88,081.74, 121,551.84 and 47,796.39 is: 65,958.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,081.74 : 121,551.84 = 47,796.39 : x
  2. Step 2: Convert to fraction form
    88,081.74/121,551.84 = 47,796.39/x
  3. Step 3: Cross multiply
    88,081.74x = 121,551.84 × 47,796.39
  4. Step 4: Simplify right side
    88,081.74x = 5,809,739,149.86
  5. Step 5: Solve for x
    x = 5,809,739,149.86/88,081.74
  6. Step 6: Final answer
    x = 65,958.50

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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.