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Finding the Fourth Proportional to 88,343.81, 121,914.14 and 48,056.84

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Solution

The fourth proportional to 88,343.81, 121,914.14 and 48,056.84 is: 66,318.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,343.81 : 121,914.14 = 48,056.84 : x
  2. Step 2: Convert to fraction form
    88,343.81/121,914.14 = 48,056.84/x
  3. Step 3: Cross multiply
    88,343.81x = 121,914.14 × 48,056.84
  4. Step 4: Simplify right side
    88,343.81x = 5,858,807,469.86
  5. Step 5: Solve for x
    x = 5,858,807,469.86/88,343.81
  6. Step 6: Final answer
    x = 66,318.26

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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.