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Finding the Fourth Proportional to 152,505.43, 228,786.90 and 57,763.97

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Solution

The fourth proportional to 152,505.43, 228,786.90 and 57,763.97 is: 86,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,505.43 : 228,786.90 = 57,763.97 : x
  2. Step 2: Convert to fraction form
    152,505.43/228,786.90 = 57,763.97/x
  3. Step 3: Cross multiply
    152,505.43x = 228,786.90 × 57,763.97
  4. Step 4: Simplify right side
    152,505.43x = 13,215,639,627.99
  5. Step 5: Solve for x
    x = 13,215,639,627.99/152,505.43
  6. Step 6: Final answer
    x = 86,656.85

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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.