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Finding the Fourth Proportional to 162,874.39, 243,975.32 and 120,801.98

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Solution

The fourth proportional to 162,874.39, 243,975.32 and 120,801.98 is: 180,953.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,874.39 : 243,975.32 = 120,801.98 : x
  2. Step 2: Convert to fraction form
    162,874.39/243,975.32 = 120,801.98/x
  3. Step 3: Cross multiply
    162,874.39x = 243,975.32 × 120,801.98
  4. Step 4: Simplify right side
    162,874.39x = 29,472,701,727.13
  5. Step 5: Solve for x
    x = 29,472,701,727.13/162,874.39
  6. Step 6: Final answer
    x = 180,953.57

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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.