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Finding the Fourth Proportional to 91,373.94, 126,095.60 and 51,087.58

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Solution

The fourth proportional to 91,373.94, 126,095.60 and 51,087.58 is: 70,500.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,373.94 : 126,095.60 = 51,087.58 : x
  2. Step 2: Convert to fraction form
    91,373.94/126,095.60 = 51,087.58/x
  3. Step 3: Cross multiply
    91,373.94x = 126,095.60 × 51,087.58
  4. Step 4: Simplify right side
    91,373.94x = 6,441,918,865.13
  5. Step 5: Solve for x
    x = 6,441,918,865.13/91,373.94
  6. Step 6: Final answer
    x = 70,500.61

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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.