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Finding the Fourth Proportional to 85,446.48, 128,169.72 and 32,846.16

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Solution

The fourth proportional to 85,446.48, 128,169.72 and 32,846.16 is: 49,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,446.48 : 128,169.72 = 32,846.16 : x
  2. Step 2: Convert to fraction form
    85,446.48/128,169.72 = 32,846.16/x
  3. Step 3: Cross multiply
    85,446.48x = 128,169.72 × 32,846.16
  4. Step 4: Simplify right side
    85,446.48x = 4,209,883,130.28
  5. Step 5: Solve for x
    x = 4,209,883,130.28/85,446.48
  6. Step 6: Final answer
    x = 49,269.24

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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.