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Finding the Fourth Proportional to 168,009.86, 252,019.11 and 48,084.50

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Solution

The fourth proportional to 168,009.86, 252,019.11 and 48,084.50 is: 72,127.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,009.86 : 252,019.11 = 48,084.50 : x
  2. Step 2: Convert to fraction form
    168,009.86/252,019.11 = 48,084.50/x
  3. Step 3: Cross multiply
    168,009.86x = 252,019.11 × 48,084.50
  4. Step 4: Simplify right side
    168,009.86x = 12,118,212,894.80
  5. Step 5: Solve for x
    x = 12,118,212,894.80/168,009.86
  6. Step 6: Final answer
    x = 72,127.99

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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.