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Finding the Fourth Proportional to 85,169.40, 127,767.60 and 29,014.80

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Solution

The fourth proportional to 85,169.40, 127,767.60 and 29,014.80 is: 43,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,169.40 : 127,767.60 = 29,014.80 : x
  2. Step 2: Convert to fraction form
    85,169.40/127,767.60 = 29,014.80/x
  3. Step 3: Cross multiply
    85,169.40x = 127,767.60 × 29,014.80
  4. Step 4: Simplify right side
    85,169.40x = 3,707,151,360.48
  5. Step 5: Solve for x
    x = 3,707,151,360.48/85,169.40
  6. Step 6: Final answer
    x = 43,526.80

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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.