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Finding the Fourth Proportional to 171,178.72, 256,792.68 and 52,859.20

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Solution

The fourth proportional to 171,178.72, 256,792.68 and 52,859.20 is: 79,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,178.72 : 256,792.68 = 52,859.20 : x
  2. Step 2: Convert to fraction form
    171,178.72/256,792.68 = 52,859.20/x
  3. Step 3: Cross multiply
    171,178.72x = 256,792.68 × 52,859.20
  4. Step 4: Simplify right side
    171,178.72x = 13,573,855,630.66
  5. Step 5: Solve for x
    x = 13,573,855,630.66/171,178.72
  6. Step 6: Final answer
    x = 79,296.40

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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.