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Finding the Fourth Proportional to 384,740.48, 577,172.80 and 118,500.96

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Solution

The fourth proportional to 384,740.48, 577,172.80 and 118,500.96 is: 177,770.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,740.48 : 577,172.80 = 118,500.96 : x
  2. Step 2: Convert to fraction form
    384,740.48/577,172.80 = 118,500.96/x
  3. Step 3: Cross multiply
    384,740.48x = 577,172.80 × 118,500.96
  4. Step 4: Simplify right side
    384,740.48x = 68,395,530,885.89
  5. Step 5: Solve for x
    x = 68,395,530,885.89/384,740.48
  6. Step 6: Final answer
    x = 177,770.56

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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.