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Finding the Fourth Proportional to 162,043.43, 243,089.46 and 56,843.87

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Solution

The fourth proportional to 162,043.43, 243,089.46 and 56,843.87 is: 85,274.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,043.43 : 243,089.46 = 56,843.87 : x
  2. Step 2: Convert to fraction form
    162,043.43/243,089.46 = 56,843.87/x
  3. Step 3: Cross multiply
    162,043.43x = 243,089.46 × 56,843.87
  4. Step 4: Simplify right side
    162,043.43x = 13,818,145,662.61
  5. Step 5: Solve for x
    x = 13,818,145,662.61/162,043.43
  6. Step 6: Final answer
    x = 85,274.33

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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.