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Finding the Fourth Proportional to 114,381.78, 157,846.87 and 63,397.79

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Solution

The fourth proportional to 114,381.78, 157,846.87 and 63,397.79 is: 87,488.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,381.78 : 157,846.87 = 63,397.79 : x
  2. Step 2: Convert to fraction form
    114,381.78/157,846.87 = 63,397.79/x
  3. Step 3: Cross multiply
    114,381.78x = 157,846.87 × 63,397.79
  4. Step 4: Simplify right side
    114,381.78x = 10,007,142,716.42
  5. Step 5: Solve for x
    x = 10,007,142,716.42/114,381.78
  6. Step 6: Final answer
    x = 87,488.96

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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.