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Finding the Fourth Proportional to 140,872.64, 211,303.49 and 56,607.53

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Solution

The fourth proportional to 140,872.64, 211,303.49 and 56,607.53 is: 84,909.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,872.64 : 211,303.49 = 56,607.53 : x
  2. Step 2: Convert to fraction form
    140,872.64/211,303.49 = 56,607.53/x
  3. Step 3: Cross multiply
    140,872.64x = 211,303.49 × 56,607.53
  4. Step 4: Simplify right side
    140,872.64x = 11,961,367,309.72
  5. Step 5: Solve for x
    x = 11,961,367,309.72/140,872.64
  6. Step 6: Final answer
    x = 84,909.09

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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.