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Finding the Fourth Proportional to 266,999.20, 400,887.60 and 162,023.20

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Solution

The fourth proportional to 266,999.20, 400,887.60 and 162,023.20 is: 243,270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,999.20 : 400,887.60 = 162,023.20 : x
  2. Step 2: Convert to fraction form
    266,999.20/400,887.60 = 162,023.20/x
  3. Step 3: Cross multiply
    266,999.20x = 400,887.60 × 162,023.20
  4. Step 4: Simplify right side
    266,999.20x = 64,953,091,792.32
  5. Step 5: Solve for x
    x = 64,953,091,792.32/266,999.20
  6. Step 6: Final answer
    x = 243,270.74

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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.