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Finding the Fourth Proportional to 115,673.20, 173,477.40 and 36,811.60

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Solution

The fourth proportional to 115,673.20, 173,477.40 and 36,811.60 is: 55,207.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,673.20 : 173,477.40 = 36,811.60 : x
  2. Step 2: Convert to fraction form
    115,673.20/173,477.40 = 36,811.60/x
  3. Step 3: Cross multiply
    115,673.20x = 173,477.40 × 36,811.60
  4. Step 4: Simplify right side
    115,673.20x = 6,385,980,657.84
  5. Step 5: Solve for x
    x = 6,385,980,657.84/115,673.20
  6. Step 6: Final answer
    x = 55,207.09

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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.