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Finding the Fourth Proportional to 114,580.10, 171,870.15 and 109,136.90

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Solution

The fourth proportional to 114,580.10, 171,870.15 and 109,136.90 is: 163,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,580.10 : 171,870.15 = 109,136.90 : x
  2. Step 2: Convert to fraction form
    114,580.10/171,870.15 = 109,136.90/x
  3. Step 3: Cross multiply
    114,580.10x = 171,870.15 × 109,136.90
  4. Step 4: Simplify right side
    114,580.10x = 18,757,375,373.54
  5. Step 5: Solve for x
    x = 18,757,375,373.54/114,580.10
  6. Step 6: Final answer
    x = 163,705.35

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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.