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Finding the Fourth Proportional to 297,740.40, 446,610.60 and 76,124.40

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Solution

The fourth proportional to 297,740.40, 446,610.60 and 76,124.40 is: 114,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,740.40 : 446,610.60 = 76,124.40 : x
  2. Step 2: Convert to fraction form
    297,740.40/446,610.60 = 76,124.40/x
  3. Step 3: Cross multiply
    297,740.40x = 446,610.60 × 76,124.40
  4. Step 4: Simplify right side
    297,740.40x = 33,997,963,958.64
  5. Step 5: Solve for x
    x = 33,997,963,958.64/297,740.40
  6. Step 6: Final answer
    x = 114,186.60

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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.