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Finding the Fourth Proportional to 189,136.50, 282,868.20 and 168,223.30

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Solution

The fourth proportional to 189,136.50, 282,868.20 and 168,223.30 is: 251,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,136.50 : 282,868.20 = 168,223.30 : x
  2. Step 2: Convert to fraction form
    189,136.50/282,868.20 = 168,223.30/x
  3. Step 3: Cross multiply
    189,136.50x = 282,868.20 × 168,223.30
  4. Step 4: Simplify right side
    189,136.50x = 47,585,022,069.06
  5. Step 5: Solve for x
    x = 47,585,022,069.06/189,136.50
  6. Step 6: Final answer
    x = 251,590.90

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1.5x scale

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.