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Finding the Fourth Proportional to 221,499.60, 332,249.40 and 155,014.80

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Solution

The fourth proportional to 221,499.60, 332,249.40 and 155,014.80 is: 232,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,499.60 : 332,249.40 = 155,014.80 : x
  2. Step 2: Convert to fraction form
    221,499.60/332,249.40 = 155,014.80/x
  3. Step 3: Cross multiply
    221,499.60x = 332,249.40 × 155,014.80
  4. Step 4: Simplify right side
    221,499.60x = 51,503,574,291.12
  5. Step 5: Solve for x
    x = 51,503,574,291.12/221,499.60
  6. Step 6: Final answer
    x = 232,522.20

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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.