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Finding the Fourth Proportional to 171,612.80, 257,428.98 and 57,714.88

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Solution

The fourth proportional to 171,612.80, 257,428.98 and 57,714.88 is: 86,575.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,612.80 : 257,428.98 = 57,714.88 : x
  2. Step 2: Convert to fraction form
    171,612.80/257,428.98 = 57,714.88/x
  3. Step 3: Cross multiply
    171,612.80x = 257,428.98 × 57,714.88
  4. Step 4: Simplify right side
    171,612.80x = 14,857,482,689.22
  5. Step 5: Solve for x
    x = 14,857,482,689.22/171,612.80
  6. Step 6: Final answer
    x = 86,575.61

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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.