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Finding the Fourth Proportional to 124,704.60, 187,056.90 and 82,714.20

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Solution

The fourth proportional to 124,704.60, 187,056.90 and 82,714.20 is: 124,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,704.60 : 187,056.90 = 82,714.20 : x
  2. Step 2: Convert to fraction form
    124,704.60/187,056.90 = 82,714.20/x
  3. Step 3: Cross multiply
    124,704.60x = 187,056.90 × 82,714.20
  4. Step 4: Simplify right side
    124,704.60x = 15,472,261,837.98
  5. Step 5: Solve for x
    x = 15,472,261,837.98/124,704.60
  6. Step 6: Final answer
    x = 124,071.30

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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.