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Finding the Fourth Proportional to 266,776.40, 368,163.23 and 153,635.60

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Solution

The fourth proportional to 266,776.40, 368,163.23 and 153,635.60 is: 212,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,776.40 : 368,163.23 = 153,635.60 : x
  2. Step 2: Convert to fraction form
    266,776.40/368,163.23 = 153,635.60/x
  3. Step 3: Cross multiply
    266,776.40x = 368,163.23 × 153,635.60
  4. Step 4: Simplify right side
    266,776.40x = 56,562,978,738.99
  5. Step 5: Solve for x
    x = 56,562,978,738.99/266,776.40
  6. Step 6: Final answer
    x = 212,023.92

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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.