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Finding the Fourth Proportional to 91,896.90, 126,832.74 and 63,192.52

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Solution

The fourth proportional to 91,896.90, 126,832.74 and 63,192.52 is: 87,216.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,896.90 : 126,832.74 = 63,192.52 : x
  2. Step 2: Convert to fraction form
    91,896.90/126,832.74 = 63,192.52/x
  3. Step 3: Cross multiply
    91,896.90x = 126,832.74 × 63,192.52
  4. Step 4: Simplify right side
    91,896.90x = 8,014,880,459.10
  5. Step 5: Solve for x
    x = 8,014,880,459.10/91,896.90
  6. Step 6: Final answer
    x = 87,216.00

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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.