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Finding the Fourth Proportional to 266,666.76, 367,993.07 and 157,776.72

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Solution

The fourth proportional to 266,666.76, 367,993.07 and 157,776.72 is: 217,727.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,666.76 : 367,993.07 = 157,776.72 : x
  2. Step 2: Convert to fraction form
    266,666.76/367,993.07 = 157,776.72/x
  3. Step 3: Cross multiply
    266,666.76x = 367,993.07 × 157,776.72
  4. Step 4: Simplify right side
    266,666.76x = 58,060,738,778.45
  5. Step 5: Solve for x
    x = 58,060,738,778.45/266,666.76
  6. Step 6: Final answer
    x = 217,727.69

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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.