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Finding the Fourth Proportional to 140,994.90, 211,443.16 and 56,733.23

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Solution

The fourth proportional to 140,994.90, 211,443.16 and 56,733.23 is: 85,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,994.90 : 211,443.16 = 56,733.23 : x
  2. Step 2: Convert to fraction form
    140,994.90/211,443.16 = 56,733.23/x
  3. Step 3: Cross multiply
    140,994.90x = 211,443.16 × 56,733.23
  4. Step 4: Simplify right side
    140,994.90x = 11,995,853,428.21
  5. Step 5: Solve for x
    x = 11,995,853,428.21/140,994.90
  6. Step 6: Final answer
    x = 85,080.05

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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.