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Finding the Fourth Proportional to 162,648.39, 243,989.10 and 56,018.42

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Solution

The fourth proportional to 162,648.39, 243,989.10 and 56,018.42 is: 84,033.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,648.39 : 243,989.10 = 56,018.42 : x
  2. Step 2: Convert to fraction form
    162,648.39/243,989.10 = 56,018.42/x
  3. Step 3: Cross multiply
    162,648.39x = 243,989.10 × 56,018.42
  4. Step 4: Simplify right side
    162,648.39x = 13,667,883,574.24
  5. Step 5: Solve for x
    x = 13,667,883,574.24/162,648.39
  6. Step 6: Final answer
    x = 84,033.31

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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.