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Finding the Fourth Proportional to 270,687.99, 373,463.55 and 157,488.87

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Solution

The fourth proportional to 270,687.99, 373,463.55 and 157,488.87 is: 217,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,687.99 : 373,463.55 = 157,488.87 : x
  2. Step 2: Convert to fraction form
    270,687.99/373,463.55 = 157,488.87/x
  3. Step 3: Cross multiply
    270,687.99x = 373,463.55 × 157,488.87
  4. Step 4: Simplify right side
    270,687.99x = 58,816,352,475.69
  5. Step 5: Solve for x
    x = 58,816,352,475.69/270,687.99
  6. Step 6: Final answer
    x = 217,284.68

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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.