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Finding the Fourth Proportional to 171,580.80, 257,405.22 and 53,247.09

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Solution

The fourth proportional to 171,580.80, 257,405.22 and 53,247.09 is: 79,881.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,580.80 : 257,405.22 = 53,247.09 : x
  2. Step 2: Convert to fraction form
    171,580.80/257,405.22 = 53,247.09/x
  3. Step 3: Cross multiply
    171,580.80x = 257,405.22 × 53,247.09
  4. Step 4: Simplify right side
    171,580.80x = 13,706,078,915.81
  5. Step 5: Solve for x
    x = 13,706,078,915.81/171,580.80
  6. Step 6: Final answer
    x = 79,881.19

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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.