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Finding the Fourth Proportional to 273,987.20, 410,721.60 and 161,753.60

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Solution

The fourth proportional to 273,987.20, 410,721.60 and 161,753.60 is: 242,477.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,987.20 : 410,721.60 = 161,753.60 : x
  2. Step 2: Convert to fraction form
    273,987.20/410,721.60 = 161,753.60/x
  3. Step 3: Cross multiply
    273,987.20x = 410,721.60 × 161,753.60
  4. Step 4: Simplify right side
    273,987.20x = 66,435,697,397.76
  5. Step 5: Solve for x
    x = 66,435,697,397.76/273,987.20
  6. Step 6: Final answer
    x = 242,477.38

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1.5x scale

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.