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Finding the Fourth Proportional to 124,328.80, 186,273.60 and 120,217.60

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Solution

The fourth proportional to 124,328.80, 186,273.60 and 120,217.60 is: 180,114.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,328.80 : 186,273.60 = 120,217.60 : x
  2. Step 2: Convert to fraction form
    124,328.80/186,273.60 = 120,217.60/x
  3. Step 3: Cross multiply
    124,328.80x = 186,273.60 × 120,217.60
  4. Step 4: Simplify right side
    124,328.80x = 22,393,365,135.36
  5. Step 5: Solve for x
    x = 22,393,365,135.36/124,328.80
  6. Step 6: Final answer
    x = 180,114.06

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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.