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Finding the Fourth Proportional to 114,869.62, 171,871.62 and 103,215.34

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Solution

The fourth proportional to 114,869.62, 171,871.62 and 103,215.34 is: 154,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,869.62 : 171,871.62 = 103,215.34 : x
  2. Step 2: Convert to fraction form
    114,869.62/171,871.62 = 103,215.34/x
  3. Step 3: Cross multiply
    114,869.62x = 171,871.62 × 103,215.34
  4. Step 4: Simplify right side
    114,869.62x = 17,739,787,694.65
  5. Step 5: Solve for x
    x = 17,739,787,694.65/114,869.62
  6. Step 6: Final answer
    x = 154,434.11

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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.