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Finding the Fourth Proportional to 79,446.40, 118,975.20 and 37,844.80

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Solution

The fourth proportional to 79,446.40, 118,975.20 and 37,844.80 is: 56,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,446.40 : 118,975.20 = 37,844.80 : x
  2. Step 2: Convert to fraction form
    79,446.40/118,975.20 = 37,844.80/x
  3. Step 3: Cross multiply
    79,446.40x = 118,975.20 × 37,844.80
  4. Step 4: Simplify right side
    79,446.40x = 4,502,592,648.96
  5. Step 5: Solve for x
    x = 4,502,592,648.96/79,446.40
  6. Step 6: Final answer
    x = 56,674.60

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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.