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Finding the Fourth Proportional to 266,975.77, 400,421.53 and 124,919.59

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Solution

The fourth proportional to 266,975.77, 400,421.53 and 124,919.59 is: 187,359.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,975.77 : 400,421.53 = 124,919.59 : x
  2. Step 2: Convert to fraction form
    266,975.77/400,421.53 = 124,919.59/x
  3. Step 3: Cross multiply
    266,975.77x = 400,421.53 × 124,919.59
  4. Step 4: Simplify right side
    266,975.77x = 50,020,493,354.77
  5. Step 5: Solve for x
    x = 50,020,493,354.77/266,975.77
  6. Step 6: Final answer
    x = 187,359.67

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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.