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Finding the Fourth Proportional to 171,862.40, 257,812.80 and 53,532.80

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Solution

The fourth proportional to 171,862.40, 257,812.80 and 53,532.80 is: 80,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,862.40 : 257,812.80 = 53,532.80 : x
  2. Step 2: Convert to fraction form
    171,862.40/257,812.80 = 53,532.80/x
  3. Step 3: Cross multiply
    171,862.40x = 257,812.80 × 53,532.80
  4. Step 4: Simplify right side
    171,862.40x = 13,801,441,059.84
  5. Step 5: Solve for x
    x = 13,801,441,059.84/171,862.40
  6. Step 6: Final answer
    x = 80,305.18

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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.