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Finding the Fourth Proportional to 88,373.84, 121,793.64 and 82,762.16

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Solution

The fourth proportional to 88,373.84, 121,793.64 and 82,762.16 is: 114,059.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,373.84 : 121,793.64 = 82,762.16 : x
  2. Step 2: Convert to fraction form
    88,373.84/121,793.64 = 82,762.16/x
  3. Step 3: Cross multiply
    88,373.84x = 121,793.64 × 82,762.16
  4. Step 4: Simplify right side
    88,373.84x = 10,079,904,720.66
  5. Step 5: Solve for x
    x = 10,079,904,720.66/88,373.84
  6. Step 6: Final answer
    x = 114,059.82

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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.