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Finding the Fourth Proportional to 140,648.56, 211,050.84 and 57,600.88

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Solution

The fourth proportional to 140,648.56, 211,050.84 and 57,600.88 is: 86,433.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,648.56 : 211,050.84 = 57,600.88 : x
  2. Step 2: Convert to fraction form
    140,648.56/211,050.84 = 57,600.88/x
  3. Step 3: Cross multiply
    140,648.56x = 211,050.84 × 57,600.88
  4. Step 4: Simplify right side
    140,648.56x = 12,156,714,108.74
  5. Step 5: Solve for x
    x = 12,156,714,108.74/140,648.56
  6. Step 6: Final answer
    x = 86,433.26

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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.