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Finding the Fourth Proportional to 221,355.48, 332,259.21 and 162,014.88

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Solution

The fourth proportional to 221,355.48, 332,259.21 and 162,014.88 is: 243,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,355.48 : 332,259.21 = 162,014.88 : x
  2. Step 2: Convert to fraction form
    221,355.48/332,259.21 = 162,014.88/x
  3. Step 3: Cross multiply
    221,355.48x = 332,259.21 × 162,014.88
  4. Step 4: Simplify right side
    221,355.48x = 53,830,936,037.04
  5. Step 5: Solve for x
    x = 53,830,936,037.04/221,355.48
  6. Step 6: Final answer
    x = 243,187.73

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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.