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Finding the Fourth Proportional to 85,313.80, 127,797.90 and 48,334.60

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Solution

The fourth proportional to 85,313.80, 127,797.90 and 48,334.60 is: 72,404.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,313.80 : 127,797.90 = 48,334.60 : x
  2. Step 2: Convert to fraction form
    85,313.80/127,797.90 = 48,334.60/x
  3. Step 3: Cross multiply
    85,313.80x = 127,797.90 × 48,334.60
  4. Step 4: Simplify right side
    85,313.80x = 6,177,060,377.34
  5. Step 5: Solve for x
    x = 6,177,060,377.34/85,313.80
  6. Step 6: Final answer
    x = 72,404.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.