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Finding the Fourth Proportional to 266,896.76, 368,450.79 and 153,697.64

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Solution

The fourth proportional to 266,896.76, 368,450.79 and 153,697.64 is: 212,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,896.76 : 368,450.79 = 153,697.64 : x
  2. Step 2: Convert to fraction form
    266,896.76/368,450.79 = 153,697.64/x
  3. Step 3: Cross multiply
    266,896.76x = 368,450.79 × 153,697.64
  4. Step 4: Simplify right side
    266,896.76x = 56,630,016,879.14
  5. Step 5: Solve for x
    x = 56,630,016,879.14/266,896.76
  6. Step 6: Final answer
    x = 212,179.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.