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Finding the Fourth Proportional to 266,448.74, 399,957.65 and 114,720.91

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Solution

The fourth proportional to 266,448.74, 399,957.65 and 114,720.91 is: 172,203.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,448.74 : 399,957.65 = 114,720.91 : x
  2. Step 2: Convert to fraction form
    266,448.74/399,957.65 = 114,720.91/x
  3. Step 3: Cross multiply
    266,448.74x = 399,957.65 × 114,720.91
  4. Step 4: Simplify right side
    266,448.74x = 45,883,504,426.17
  5. Step 5: Solve for x
    x = 45,883,504,426.17/266,448.74
  6. Step 6: Final answer
    x = 172,203.87

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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.