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Finding the Fourth Proportional to 91,777.30, 126,652.77 and 53,563.12

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Solution

The fourth proportional to 91,777.30, 126,652.77 and 53,563.12 is: 73,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,777.30 : 126,652.77 = 53,563.12 : x
  2. Step 2: Convert to fraction form
    91,777.30/126,652.77 = 53,563.12/x
  3. Step 3: Cross multiply
    91,777.30x = 126,652.77 × 53,563.12
  4. Step 4: Simplify right side
    91,777.30x = 6,783,917,517.84
  5. Step 5: Solve for x
    x = 6,783,917,517.84/91,777.30
  6. Step 6: Final answer
    x = 73,917.16

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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.