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Finding the Fourth Proportional to 91,962.96, 126,797.56 and 71,550.96

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Solution

The fourth proportional to 91,962.96, 126,797.56 and 71,550.96 is: 98,653.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,962.96 : 126,797.56 = 71,550.96 : x
  2. Step 2: Convert to fraction form
    91,962.96/126,797.56 = 71,550.96/x
  3. Step 3: Cross multiply
    91,962.96x = 126,797.56 × 71,550.96
  4. Step 4: Simplify right side
    91,962.96x = 9,072,487,143.66
  5. Step 5: Solve for x
    x = 9,072,487,143.66/91,962.96
  6. Step 6: Final answer
    x = 98,653.71

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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.