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Finding the Fourth Proportional to 114,220.60, 170,942.10 and 100,223.80

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Solution

The fourth proportional to 114,220.60, 170,942.10 and 100,223.80 is: 149,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,220.60 : 170,942.10 = 100,223.80 : x
  2. Step 2: Convert to fraction form
    114,220.60/170,942.10 = 100,223.80/x
  3. Step 3: Cross multiply
    114,220.60x = 170,942.10 × 100,223.80
  4. Step 4: Simplify right side
    114,220.60x = 17,132,466,841.98
  5. Step 5: Solve for x
    x = 17,132,466,841.98/114,220.60
  6. Step 6: Final answer
    x = 149,994.54

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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.