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Finding the Fourth Proportional to 88,202.40, 121,713 and 49,950.96

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Solution

The fourth proportional to 88,202.40, 121,713 and 49,950.96 is: 68,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,202.40 : 121,713 = 49,950.96 : x
  2. Step 2: Convert to fraction form
    88,202.40/121,713 = 49,950.96/x
  3. Step 3: Cross multiply
    88,202.40x = 121,713 × 49,950.96
  4. Step 4: Simplify right side
    88,202.40x = 6,079,681,194.48
  5. Step 5: Solve for x
    x = 6,079,681,194.48/88,202.40
  6. Step 6: Final answer
    x = 68,928.75

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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.