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Finding the Fourth Proportional to 436,121.60, 654,182.40 and 186,828.80

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Solution

The fourth proportional to 436,121.60, 654,182.40 and 186,828.80 is: 280,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,121.60 : 654,182.40 = 186,828.80 : x
  2. Step 2: Convert to fraction form
    436,121.60/654,182.40 = 186,828.80/x
  3. Step 3: Cross multiply
    436,121.60x = 654,182.40 × 186,828.80
  4. Step 4: Simplify right side
    436,121.60x = 122,220,112,773.12
  5. Step 5: Solve for x
    x = 122,220,112,773.12/436,121.60
  6. Step 6: Final answer
    x = 280,243.20

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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.