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Finding the Fourth Proportional to 266,689.05, 368,000.66 and 157,796.72

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Solution

The fourth proportional to 266,689.05, 368,000.66 and 157,796.72 is: 217,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,689.05 : 368,000.66 = 157,796.72 : x
  2. Step 2: Convert to fraction form
    266,689.05/368,000.66 = 157,796.72/x
  3. Step 3: Cross multiply
    266,689.05x = 368,000.66 × 157,796.72
  4. Step 4: Simplify right side
    266,689.05x = 58,069,297,105.84
  5. Step 5: Solve for x
    x = 58,069,297,105.84/266,689.05
  6. Step 6: Final answer
    x = 217,741.59

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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.