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Finding the Fourth Proportional to 168,655.89, 252,946.58 and 48,686.76

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Solution

The fourth proportional to 168,655.89, 252,946.58 and 48,686.76 is: 73,019.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,655.89 : 252,946.58 = 48,686.76 : x
  2. Step 2: Convert to fraction form
    168,655.89/252,946.58 = 48,686.76/x
  3. Step 3: Cross multiply
    168,655.89x = 252,946.58 × 48,686.76
  4. Step 4: Simplify right side
    168,655.89x = 12,315,150,138.40
  5. Step 5: Solve for x
    x = 12,315,150,138.40/168,655.89
  6. Step 6: Final answer
    x = 73,019.39

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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.